NOTE: Johne's Disease may be viewed as one complete publication file below, or as individual chapter files at johnes.htm

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Johne's Disease--Mycobacterium avium subsp. paratuberculosis: A Debilitating Enteric Disease of Ruminants

June 2002 (Revised January 2003)

 

 


Jean Larson
Animal Welfare Information Center

U.S. Department of Agriculture
Agricultural Research Service
National Agricultural Library
10301 Baltimore Avenue
Beltsville, MD 20705-2351
Telephone: (301) 504-6212
Fax: (301) 504-7125
E-mail: awic@nal.usda.gov
www.nal.usda.gov/awic


Disclaimers




Contents

Introduction       Notes about this Document        Bibliography





Introduction

There are many loses in the livestock industry as a result of the bacterial disease called Johne's disease. "The disease occurs across the US and many foreign countries and is one of the most economically important disease of cattle." 3.   The effects of this contagious disease lead to reduced milk, fetal loss and early death. This disease is caused by a bacterium Mycobacterium avium sp species paratuberculosis. This family of bacteria causes a variety of disease scourges such as tuberculosis, leporsy, cervical lymphadenitis, Aswimming pool granuloma, chronic pulmonary diseases and Johne's disease. Johne's disease is known to affect cattle, sheep, llamas, camels, goats, farmed deer, bison, and other domestic and wild ruminants. It may be the cause of some wasting diseases in horses and swine. Also, chickens can be successfully infected with it. The disease can also be transmitted to laboratory animals in a laboratory setting.   It may also be an agent of the Crohn=s disease in humans. There is conflicting information about the zoonotic risks of the disease, but interaction with diseased animals should be done with caution. Johne's is found world-wide.

The disease. Although the infection is usually acquired early in life, the clinical signs can take 2-6 years to develop. Clinical signs in cattle include severe wasting due to prolonged diarrhea, dehydration, and emaciation with lethal consequences. ( In other susceptible animals the clinical signs are somewhat different.) In cattle the intestinal wall becomes thickened and has transverse folds called rugae. The surface looks corrugated. Lymph nodes are also affected and at times there are lesions in the liver, spleen, lungs, kidneys. Infections in the uterus and placenta can lead to congenital infection and abortion. Most cattle are infected when young through contaminated feed, colostrum, milk, contaminated bedding and water. The organism is often shed in large number in the feces and for long periods of time. It can live for long periods in fecal material and depending on the environmental and soil conditions, has been known to survive up to 1 year.

Diagnosis. Diagnosis of the disease in live individual animals is difficult for a number of reasons. To date, "there is no single, good test for paratuberculosis and a combination of tests is often used." 1. It seems that it is easier to diagnosis the presence in a herd as apposed to individual animals. Most of the time, the definitive diagnosis is done after an animal has died. Note that in the bibliography, there is research going on to attempt to develop better diagnostic methods for this difficult disease.

Control measures. There is no satisfactory treatment for the disease. The trend toward intensive has made control more difficult. Disease control is via implementing a variety of production practices. Some of the production practices include culling of affected animals, and removal of calves from dams immediately following birth. The calves are then fed pasturized colostrum that is free of fecal contamination and raising them in a facility that is separate from adult cows. Fecal culturing of all cows in a herd can catch those affected early on. Manure removal and facility cleaning can help control the disease. Since a basic soil discourages bacterial survival in soil, liming of pastures is helpful.

Vaccines used in calfhood can be effective in reducing the incidence, but they do not totally eliminate disease. A more effective vaccine is also being researched at this time, but vaccination does not eliminate the need for good production practices.

Resources used above:

1. Aiello, Susan E. and Asa Mays (eds.) The Merck Veterinary Manual, 8th edition. Whitehouse Station, N. J. The Merck & Co, Inc. 1998, p.537-539.

2. Jones, Thomas Carlyle and Ronald Duncan Hunt. Veterinary Pathology, 5th edition. Philadelphia, Lea & Febiger. 1983. p 648-664.

3. U.S. Department of Agriculture. 1984 Yearbook of Agriculture. Animal Health. Washington, D.C.. The Department. 1984 p. 158-160.

Additional information:

Genome Sequencing Completed for Major Dairy Cattle Microbe.

Manual of Standards Diagnostic Tests and Vaccines. Part 2, Section 2.2, Chapter 2.2.6. Paratuberculosis (Johne's Disease)



Notes about this Document

This document is compiled from the AGRICOLA database. The information is organized alphabetically by author and by publication year. Where there were abstracts in the database, they have been included in this document. The National Agricultural Library call numbers are included. This is intended to be a dynamic document and will be updated and added to at least once a year.

If the reader is interested in obtaining copies of the articles, you may request them on inter-library loan through your local library. Complete document delivery information is available at www.nal.usda.gov/ddsb. If you have comments or would like to submit additional information for inclusion in this document, please contact the author at jlarson@nal.usda.gov.



 

Bibliography

 

2002 / 2001 / 2000 / 1999 / 1998 / 1997 / 1996 / USDA and USDA Sponsored Research

 

 

2002

Bakker, D. Keynote: Johne's disease in the Netherlands. Research in Veterinary Science. April, 2002; 72 (Supplement A): 28-29. ISSN: 0034-5288 Note: 56th Annual Conference of the Association of Veterinary Teachers and Research Workers on Current Topics in Veterinary Science, Scarborough, England, UK, March 25-27, 2002
NAL Call No.: 41.8 R312
Descriptors: epidemiology, Mycobacterium avium ssp. paratuberculosis, cattle, Netherlands, Johne’s disease.

Bannantine, John P.; Stabel, Judith R. Killing of Mycobacterium avium subspecies paratuberculosis within macrophages. BMC Microbiology. January 30, 2002; 2 (2 Cited May 17, 2002): 1-7. ISSN: 1471-2180
Journal article URL: http://www.biomedcentral.com/content/pdf/1471-2180-2-2.pdf [cited July 16, 2002]
Journal URL: http://www.biomedcentral.com/1471-2180
Descriptors: ruminant animal pathogen, cultured macrophages, interplay between bacterium and host, replication time, immunogold labeling of infected macrophages with antibodies, using transmission electron microscopy and viability counts.

Boor, Kathryn J. Fluid dairy product quality and safety: Looking to the future. Journal of Dairy Science. January, 2001; 84 (1): 1-11. ISSN: 0022-0302
Journal URL: http://www.ADSA.org/jds
NAL Call No.: 44.8 J822
Descriptors: milk based beverages, food safety, shelf life, control of contamination, thermal resistance characteristics, Mycobacterium avium ssp. paratuberculosis

Borody, T. J.; Leis, S.; Warren, E. F.; Surace, R. Treatment of severe Crohn's disease using antimycobacterial triple therapy: Approaching a cure? Digestive and Liver Disease. January, 2002; 34 (1): 29-38. ISSN: 1590-8658
Descriptors: causal role, Mycobacterium avium ssp paratuberculosis, Crohn’s disease, triple macrolide-based anti-mycobacterial therapy, rifabutin (450 mg/d), clarithromycin (750 mg/d) and clofazimine (2 mg/kg/d), anti microbial treatment.

Burton, L.; Voges, H. Control of Johne's disease in dairy cattle. Proceedings of the New Zealand Society of Animal Production. 2002; 62: 299-302. ISSN: 0370-2731
NAL Call No.: 49.9 N483
Descriptors: dairy cattle, Mycobacterium avium ssp. paratuberculosis, Crohn’s disease, contaminated milk products, infection level data, economic impacts, possible control measures, vaccines, management practices, breeding for genetic resistance, New Zealand.

Cerri, D.; Cantile, C.; Ebani, V. V.; Montagnese, M.; Voltini, B.; Arispici, M. Diagnosis of paratuberculosis in naturally infected goats. Microbiologica-Pavia. April, 2002; 25 (2): 131-137. ISSN: 1121-7138
NAL Call No.: QR1 M57
Descriptors: goats, immunohistochemical method, agar gel immunodiffusion (AGID), diagnosis, Mycobacterium avium subsp. Paratuberculosis, pathology, isolated from various organs, intestines, mesenteric lymph nodes, macrophages.

Cocito, Carlo; Coene, Marc; De Kesel, Myriam; Gilot, Philippe. Polypeptides from Mycrobacterium paratuberculosis. Official Gazette of the United States Patent and Trademark Office Patents. [e-file] May 14, 2002; 1258 (2): No Pagination. ISSN: 0098-1133
NAL Call No.: T223.A21
Descriptors: Johne’s disease, bacterial pathogen, 101 amino acids of FIG 8, M. bovis, M. avium, M. phlei, M. tuberculosis, and possibly against M. leprae, M. intracellulare, M. scrofulaceum, M. fortuitum, M. gordonae and M. smegmatis, Johne’s positive cattle sera.

Corti, Sabrina; Stephan, Roger. Detection of Mycobacterium avium subspecies paratuberculosis specific IS900 insertion sequences in bulk-tank milk samples obtained from different regions throughout Switzerland. BMC Microbiology. June 26, 2002; 2 (15 Cited August 6, 2002): No Pagination. ISSN: 1471-2180
Journal URL: http://www.biomedcentral.com/1471-2180
Descriptors: possible relationship of MAP to Crohn’s disease etiology, possible hazards of raw milk, bulk tank milk sampling, dairy stock subclinical infections, Switzerland.

Coussens, Paul M. Mycobacterium paratuberculosis and the bovine immune system. Animal Health Research Reviews. December, 2001; 2 (2): 141-161. ISSN: 1466-2523
Journal URL: http://www.cabi-publishing.org/JOURNALS/AHRR/Index.asp
NAL Call No.: SF601.A547
Descriptors: cattle, immunity, pathology.

Davies, P.R. Is Crohn's disease caused by M. avium subsp. paratuberculosis? Proceedings of the New Zealand Society of Animal Production. 2002; 62: 290-293. ISSN: 0370-2731
NAL Call No.: 49.9 N483
Descriptors: Johne’s disease, role of disease in Crohn’s disease, discussion of possible zoonotic aspects of MAP.

D' Haese, Eva; Nelis, Hans J. Rapid detection of single cell bacteria as a novel approach in food microbiology. Journal of AOAC International. July-August, 2002; 85 (4): 979-983. ISSN: 1060-3271
NAL Call No.: S583.A7
Descriptors: solid phase cytometry, food sampling, slow growing bacteria detection, of Mycobacterium avium ssp. paratuberculosis, model example of a slow-growing bacterium in milk.

Englund, Stina; Bolske, Goran; Johansson, Karl Erik. An IS900-like sequence found in a Mycobacterium sp. other than Mycobacterium avium subsp. paratuberculosis. FEMS Microbiology Letters. April, 9 2002; 209 (2): 267-271. ISSN: 0378-1097
Journal URL: http://www.elsevier.com/locate/femslett
NAL Call No.: QR1.F44
Descriptors: IS 900, specificity, dairy cows, Mycobacterium cookii, recommendations of gene other than IS900 for detection.

Ferreira, R.; Fonseca, L.S.; Lilenbaum, W. Agar gel immunodiffusion test (AGID) evaluation for detection of bovine paratuberculosis in Rio de Janeiro, Brazil.
Letters in Applied Microbiology. 2002; 35(3):173-175. ISSN: 0266-8254
NAL Call No.: QR1.L47
Descriptors: epidemiology, immune response, bacterial infection, Mycobacterium paratuberculosis, diagnostic screening method, agarose gel immunodiffusion test, cattle sera, Brazilian herds, subclinical herd infections.

Fujita, Hiroshi; Eishi, Yoshinobu; Ishige, Ikuo; Saitoh, Kiyoshi; Takizawa, Touichirou; Arima, Terukatsu; Koike, Morio. Quantitative analysis of bacterial DNA from Mycobacteria spp., Bacteroides vulgatus, and Escherichia coli in tissue samples from patients with inflammatory bowel diseases. Journal of Gastroenterology. July, 2002; 37 (7): 509-516. ISSN: 0944-1174
Descriptors: possible role of Mycobacterium, bowel diseases in humans.

Grant, I.R.; Ball, H.J.; Rowe, M.T. Effectiveness of milk pasteurization in relation to Mycobacterium paratuberculosis. Research in Veterinary Science. April, 2002; 72 (Supplement A): 29. ISSN: 0034-5288 Note: 56th Annual Conference of the Association of Veterinary Teachers and Research Workers on Current Topics in Veterinary Science, Scarborough, England, UK, March 25-27, 2002.
NAL Call No.: 41.8 R312
Descriptors: epidemiology, Mycobacterium avium paratuberculosis, contamination control, milk pasteurization treatments, Crohn’s disease, Johne’s disease.

Grant, Irene R.; Hitchings, Edward I.; McCartney, Alan; Ferguson, Fiona; Rowe, Michael T. Effect of commercial-scale high-temperature, short-time pasteurization on the viability of Mycobacterium paratuberculosis in naturally infected cows' milk. Applied and Environmental Microbiology. February, 2002; 68 (2): 602-607. ISSN: 0099-2240
NAL Call No.: 448.3 Ap5
Journal URL: http://www.journals.asm.org
Descriptors: milk contamination control, APV HXP commercial-scale pasteurizer, 4 different treatments, immunomagnetic separation PCR detection method, effects of homogenization, levels of contamination.

Grant, Irene R.; Ball, Hywel J.; Rowe, Michael T. Incidence of Mycobacterium paratuberculosis in bulk raw and commercially pasteurized cows' milk from approved dairy processing establishments in the United Kingdom. Applied and Environmental Microbiology. May, 2002; 68 (5): 2428-2435. ISSN: 0099-2240
Journal URL: http://www.journals.asm.org
NAL Call No.: 448.3 Ap5
Descriptors: milk sampling, Mycobacterium avium subsp. paratuberculosis (MAP), immunomagnetic PCR, cell culture, low levels of MAP, commercially pasteurized cows' milk, United Kingdom.

Greig, A.; Beard, P.; Daniels, M. J.; Henderson, D.; Hutchings, M.R.; Stevenson, K. The potential role of wildlife in the epidemiology of paratuberculosis in domestic animals. Research in Veterinary Science. April, 2002; 72 (Supplement A): 30. ISSN: 0034-5288 Note: 56th Annual Conference of the Association of Veterinary Teachers and Research Workers on Current Topics in Veterinary Science, Scarborough, England, UK, March 25-27, 2002
NAL Call No.: 41.8 R312
Descriptors: epidemiology, Mycobacterium avium paratuberculosis, wildlife as a disease reservoir, fox, rabbit, stoat, weasel, dairy cattle industry, Johne’s disease, transmission, UK

Guo, Hongyan; Naser, Saleh A; Ghobrial, George; Phanstiel, Otto IV. Synthesis and biological evaluation of new citrate-based siderophores as potential probes for the mechanism of iron uptake in mycobacteria. Journal of Medicinal Chemistry. May 9, 2002; 45 (10): 2056-2063. ISSN: 0022-2623
NAL Call No.: RS403.A1J6
Journal URL: http://pubs.acs.org/jmc
Descriptors: bacterial pathogen, Mycobacterium avium subsp. paratuberculosis (MAP), iron uptake, mycobactin J, deferrioxamine B, acinetoferrin, nannochelin A, trans 2-octenoyl motif, trans cinnamoyl groups, iron binding ligands (C5), growth index values, at 2.4 muM a trans 2-octenoylated, citrate-containing imide 6.

Gwozdz, J. M.; Thompson, K. G. Antigen-induced production of interferon-gamma in samples of peripheral lymph nodes from sheep experimentally inoculated with Mycobacterium avium subsp. paratuberculosis. Veterinary Microbiology. January 23, 2002; 84 (3): 243-252. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: sheep, IFN-gamma, experimental oral inoculation, blood sampling, complement fixation test (CFT), agar gel diffusion test (AGID), enzyme-linked immunosorbent assay (ELISA), IFN-gamma test.

Halldorsdottir, Stefania; Englund, Stina; Nilsen, Sigrun Fredsvold; Olsaker, Ingrid. Detection of Mycobacterium avium subsp. paratuberculosis by buoyant density centrifugation, sequence capture PCR and dot blot hybridisation. Veterinary Microbiology. 22 July, 2002; 87 (4): 327-340. ISSN: 0378-1135
Journal URL: http://www.elsevier.com/locate/vetmic
NAL Call No.: SF601.V44
Descriptors: detection methods, bovine fecal samples, Percoll and IS900, alternative to bacterial culture.

Hancox, M. Bovine tuberculosis: Milk and meat safety. Lancet North American Edition. February 23, 2002; 359 (9307): 706-707. ISSN: 0099-5355
Journal URL: http://www.elsevier.nl/inca/publications/store/3/1/0/6/6/index.htt
 NAL Call No.: 448.8 L22
Descriptors: bovine based food product safety, human health risks, Mycobacterium avium paratuberculosis, Campylobacter spp, bacterial disease contamination.

Harris, N. B.; Zinniel, D. K.; Hsieh, M. K.; Cirillo, J. D.; Barletta, R. G. Cell sorting of formalin-treated pathogenic Mycobacterium paratuberculosis expressing GFP. Biotechniques. March, 2002; 32 (3): 522-527. ISSN: 0736-6205
NAL Call No.: RB37.A1B56
Descriptors: Mycobacterium avium ssp. paratuberculosis, occupational safety, laboratory employees, pathogenic organisms, GFP fluorophore, safe handling without biosafety level II and III equipment.

Hermon, Taylor J. Treatment with drugs active against Mycobacterium avium subspecies paratuberculosis can heal Crohn's disease: More evidence for a neglected public health tragedy. Digestive and Liver Disease. January, 2002; 34 (1): 9-12. ISSN: 1590-8658
Descriptors: clinical immunology, bacterial infection; Mycobacterium avium paratuberculosis, pathogens, clarithromycin, clofazimine, rifabutin, Crohn's disease, therapy.

Hermon, Taylor John; Bull, Tim. Crohn's disease caused by Mycobacterium avium subspecies paratuberculosis: A public health tragedy whose resolution is long overdue. Journal of Medical Microbiology. January, 2002; 51 (1): 3-6. ISSN: 0022-2615
Journal URL: http://www.jmedmicrobiol.com
NAL Call No.: QR1.J62
Descriptors: animal and human pathogen, zoonotic aspects, human health risks, contaminated animal products.

Hermon, Taylor J.; Bull, T.; Boumedine, K.; McMinn, E.; Skull, A. Keynote: Mycobacterium avium subspecies paratuberculosis in animals, food and water supplies, and its impact on human health. Research in Veterinary Science. April, 2002; 72 (Supplement A): 28. ISSN: 0034-5288 Note: 56th Annual Conference of the Association of Veterinary Teachers and Research Workers on Current Topics in Veterinary Science, Scarborough, England, UK, March 25-27, 2002.
NAL Call No.: 41.8 R312
Descriptors: epidemiology, Mycobacterium avium paratuberculosis, cattle, humans, rabbits, sheep, human health risks, Johne’s disease.

Hirst, Heather L.; Garry, Franklyn B.; Salman, M.D. Assessment of test results when using a commercial enzyme-linked immunosorbent assay for diagnosis of paratuberculosis in repeated samples collected from adult dairy cattle. Journal of the American Veterinary Medical Association. June 1, 2002; 220 (11): 1685-1689. ISSN: 0003-1488
Journal URL: http://www.avma.org
NAL Call No.: 41.8 Am3
Descriptors: dairy cows, cattle, ELISA, antibody detection, Mycobacterium avium ssp paratuberculosis, serum samples, 2 sampling times, control measures.

Hutchings, M.R.; Daniels, M.J.; Henderson, D.; Greig, A. Wildlife to ruminant transmission routes for M. a. paratuberculosis. Research in Veterinary Science. April, 2002; 72 (Supplement A): 30. ISSN: 0034-5288 Note: 56th Annual Conference of the Association of Veterinary Teachers and Research Workers on Current Topics in Veterinary Science, Scarborough, England, UK, March 25-27, 2002.
NAL Call No.: 41.8 R312
Descriptors: epidemiology, Mycobacterium avium paratuberculosis, wildlife as a disease reservoir, cattle, rabbit, rodents, dairy cattle industry, Johne’s disease, transmission, UK.

Jones, P.H.; Farver, T.B.; Beaman, B.L.; Cetinkaya, B.; Morgan, K. L. Chronic gastrointestinal diseases in dairy farmers in England and the Welsh borders: Is there an association between Crohn's disease and bovine paratuberculosis? Research in Veterinary Science. April, 2002; 72 (Supplement A): 30-31. ISSN: 0034-5288 Note: 56th Annual Conference of the Association of Veterinary Teachers and Research Workers on Current Topics in Veterinary Science, Scarborough, England, UK, March 25-27, 2002.
NAL Call No.: 41.8 R312
Descriptors: epidemiology, potential for zoonotic disease, Mycobacterium avium paratuberculosis, possible work related illness, dairy cattle industry, dairy farmers, Johne’s disease, UK.

Koets, Ad; Rutten, Victor; Hoek, Aad; van Mil, Frans; Muller, Kerstin; Bakker, Douwe; Gruys, Erik; van Eden,Willem. Progressive bovine paratuberculosis is associated with local loss of CD4+ T cells, increased frequency of gammadelta T cells, and related changes in T cell function. Infection and Immunity. July, 2002; 70 (7): 3856-3864. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: Mycobacterium avium ssp. paratuberculosis, loss of cell mediated response, immune reactivity of intestine, cows, etiology.

Langelaar, M.; Koets, A.; Muller, K.; van Eden, W.; Noordhuizen, J.; Howard, C.; Hope, J.; Rutten, V. Mycobacterium paratuberculosis heat shock protein 70 as a tool in control of paratuberculosis. Veterinary-Immunology-and-Immunopathology. September 10, 2002; 87 (3-4): 239-244. ISSN: 0165-2427
NAL Call No.: SF757.2.V38
Journal URL: http://www.elsevier.com/locate/vetimm
Descriptors: Mycobacterium avium ssp. paratuberculosis, cattle, antibody titers, rHsp 70, shuttle antigen, interaction between APC and Fitc-labelled rHsp70, FACS analysis, uptake.

Lund, Barbara M.; Gould, Grahame W.; Rampling, Anita M. Pasteurization of milk and the heat resistance of Mycobacterium avium subsp. paratuberculosis: A critical review of the data. International Journal of Food Microbiology. July 25, 2002; 77 (1-2): 135-145. ISSN: 0168-1605
Journal URL: http://www.elsevier.com/locate/ijfood,icro
NAL Call No.: QR115.I57
Descriptors: Mycobacterium avium subsp. Paratuberculosis, heat resistance, Johne’s disease, Crohn’s disease, heat treatment parameters, performance criterian, human health risks, post pasteurization contamination control.

Mackintosh, C. G. Johne's disease in deer: Prospects for control. Proceedings of the New-Zealand Society of Animal Production. 2002; 62: 303-306. ISSN: 0370-2731.
NAL Call No.: 49.9 N483
Descriptors: farmed deer, disease prevention and control, Mycobacterium avium ssp. Paratuberculosis, clinical picture, detection of subclinical infections, culling, depopulation, restocking, New Zealand.

Mahmoud, O. M.; Haroun, E. M.; Elfaki, M. G.; Abbas, B. Pigmented paratuberculosis granulomata in the liver of sheep. Small Ruminant Research. March, 2002; 43 (3): 211-217. ISSN: 0921-4488
Journal URL: http://www.elsevier.com/locate/smallrumres
NAL Call No.: SF380.I52
Descriptors: Johne’s disease, sheep, description of granulomata, epitheloid cells, basophilic granules, fibrous capsule, intestinal lesions, ileum, rectum, mesenteric lymph nodes, acid fast bacteria, Mycobacterium avium ssp. paratuberculosis, yellowish-orange pigment.

Mullerad, Jacob; Michal, Israel; Fishman, Yolanta; Hovav, Avi Hai; Barletta Raul, G.; Bercovier, Herve. The immunogenicity of Mycobacterium paratuberculosis 85B antigen. Medical Microbiology and Immunology. March, 2002; 190 (4): 179-187. ISSN: 0300-8584
Descriptors: Mycobacterium avium ssp. paratuberculosis, mouse model, laboratory experiment, immune response, recombinant MPT 85B in Ribi adjuvant, anti-85B antibody production of all classes tested, IgG1/IgG2a ratio, cellular vaccine candidate.

Murray, Dupont C. Vaccination against Johne's disease. Proceedings of the New Zealand Society of Animal Production. 2002; 62: 288-289. ISSN: 0370-2731
NAL Call No.: 49.9 N483
Descriptors: control, immunogenic cell surface associated and secreted proteins, New Zealand field isolate, Mycobacterium avium ssp paratuberculosis, possible subunit vaccine, adverse effects of vaccination, TB testing.

Muskens, J.; van Zijderveld, F.; Eger, A.; Bakker, D. Evaluation of the long-term immune response in cattle after vaccination against paratuberculosis in two Dutch dairy herds. Veterinary Microbiology. May 1, 2002; 86 (3): 269-278. ISSN:0378-1135
Journal URL: http://www.elsevier.com/locate/vetmic
NAL Call No.: SF601.V44
Descriptors: vaccination, paratuberculosis, tuberculosis, herd health, serological screening, cattle 3 years old, vaccine testing, heat-killed paratuberculosis vaccine, 12-14 year study, 2 herds, Netherlands, effect of vaccination on both cellular and humoral immune responses, paratuberculosis antigen, bovine tuberculosis antigen, long lasting interference.

Mutwiri, George K.; Rosendal, Soren; Kosecka, Ula; Yager, Julie A.; Perdue, Mary; Snider, Denis; Butler, Daniel G. Adoptive transfer of BALB/c mouse splenocytes reduces lesion severity and induces intestinal pathophysiologic changes in the Mycobacterium avium subspecies paratuberculosis beige/scid mouse model. Comparative Medicine, Memphis.August, 2002; 52 (4): 332-341. ISSN: 1532-0820
NAL Call No.: SF77. C65
Descriptors: mouse model, beige/scid strain, resistance, introperitoneal inoculation, immune reconstruction.

Nielsen, Soren S.; Gronbaek, Carsten; Agger, Jens F.; Houe, Hans. Maximum-likelihood estimation of sensitivity and specificity of ELISAs and faecal culture for diagnosis of paratuberculosis. Preventive Veterinary Medicine. March 14, 2002; 53 (3): 191-204. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: Mycobacterium bovis, Mycobacterium avium ssp. paratuberculosis, 3 diagnostic tests, 2 ELISA’s, fecal cultures, use of tests for screening and for confirmation, discussion of test selection.

Nielsen, Soren S.; Enevoldsen, Carsten; Grohn, Yrjo T. The Mycobacterium avium subsp. paratuberculosis ELISA response by parity and stage of lactation. Preventive Veterinary Medicine. 30 May, 2002; 54 (1): 1-10. ISSN: 0167-5877
Journal URL: http://www.elsevier.com/locate/prevetmed
NAL Call No.: SF601.P7
Descriptors: ELISA, Johne’s disease, cows, milk samples, serum samples, antibody detection, interpretation, detection, tentative diagnosis.

Nielsen, S. S.; Grohn Y. T.; Quaas, R.L; Agger, J. F. Paratuberculosis in dairy cattle: Variation of the antibody response in offspring attributable to the dam. Journal of Dairy Science. February, 2002; 85 (2): 406-412. ISSN: 0022-0302
Journal URL: http://www.ADSA.org/jds
NAL Call No.: 44.8 J822
Descriptors: transmission factors, Mycobacterium avium ssp paratuberculosis, dairy cattle, ELISA antibody testing, contribution from parents, heritability of susceptibility and vertical transmission, control programs, etiology, epidemiology.

O' Doherty, A.; O' Grady, D.; Smith, T.; Egan, J. Mycobacterium avium subsp. paratuberculosis in pasteurised and unpasteurised milk in the Republic of Ireland. Irish Journal of Agricultural and Food Research. June, 2002; 41 (1): 117-121. ISSN: 0791-6833
NAL Call No.: S539.5.I74
Descriptors: milk samples, unpasteurized bulk sampling, cattle, goats, retail pasteurized milk sampling, decontamination with hexadecyl pyridinium chloride, cultured for MAP, Bactec B12B and Herrold's Egg Yolk medium.

Olsen, I.; Siguroardottir, O. G.; Djonne, B. Paratuberculosis with special reference to cattle. A review. Veterinary Quarterly. February, 2002; 24 (1): 12-28. ISSN: 0165-2176
NAL Call No.: SF601 V46
Descriptors: cattle disease, description, symptoms, world-wide economic effects, control, clinical importance, pathology, immunology, properties of infectious agent, identification of subclinical infections, diagnostic methods evaluated, Mycobacterium avium ssp. paratuberculosis.

Pang, Victor Fei; Lee, Chia Hao; Chueh, Ling Ling; Liu, Chen Hsuan; Cheng, Chiung Hsian; Chiou, Huey Ing; Chang, Chih Cheng; Fu, Yng Bin; Chang, Chih Hua; Lee, Shu Hwae; Chen, Mei Ing; Shiau, Chung Jung; Chang, Chao Fu; Chi, Chau Haw; Jeng, Chian-Ren. Diagnosis and differentiation of mycobacterial infection in formalin-fixed and paraffin-embedded tissues of zoo animals by polymerase chain reaction. Taiwan Veterinary Journal. March, 2002; 28 (1): 80-87. ISSN: 1682-6485 Note: In Chinese.
NAL Call No.: SF604 C54
Descriptors: zoo animals; Mycobacterium; diagnosis of species of Mycobacterium; tuberculosis; polymerase chain reaction (PCR) based method; non-radioactive labeled Southern blot hybridization; DNA fragment; 65 kD mycobacterial surface antigen of M. tuberculosis, M. bovis, M. avium subsp. avium, M. avium subsp. paratuberculosis, and M. fortuitum; 38 kd protein antigen b of M. tuberculosis and M. bovis, in formalin-fixed and paraffin-embedded tissues.

Pillai, S.R.; Jayarao, B.M. Application of IS900 PCR for detection of Mycobacterium avium subsp. paratuberculosis directly from raw milk. Journal of Dairy Science. May, 2002; 85 (5): 1052-1057. ISSN: 0022-0302
Journal URL: http://www.ADSA.org/jds
NAL Call No.: 44.8 J822
Descriptors: polymerase chain reaction-based assay, sequence900, raw bulk milk samples, experimental inoculation, cattle milk sampling, Johne’s disease, sensitivity of assay.

Richter, Elvira; Wessling, Johannes; Luegering, Norbert; Domschke, Wolfram; Ruesch, Gerdes Sabine. Mycobacterium avium subsp. paratuberculosis infection in a patient with HIV, Germany. Emerging Infectious Diseases. July, 2002; 8 (7): 729-731. ISSN: 1080-6040
NAL Call No.: RA648.5.E46
Descriptors: confirmed diagnosis, human, zoonotic disease, impared immune system, Germany.

Secott, T.E.; Lin, T. L.; Wu, C. C. Fibronectin attachment protein is necessary for efficient attachment and invasion of epithelial cells by Mycobacterium avium subsp. paratuberculosis.
Infection and Immunity. May, 2002; 70 (5): 2670-2675. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: Mycobacterium avium ssp. paratuberculosis, attachment, ingestion, 2 epithelial cells, effect of soluble fibromectin, disruption of FAP-P expression T-24 and Caco-2 calls.

Sergeant, E. S. G.; Whittington, R. J.; More, S. J. Sensitivity and specificity of pooled faecal culture and serology as flock-screening tests for detection of ovine paratuberculosis in Australia. Preventive Veterinary Medicine. January 22, 2002; 52 (3-4): 199-211. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: sheep, pooled fecal culture, serological testing AGID, Johnes’s infected flocks, test sensitivity and reliability for flock health testing, surveillance and assurance programs, Australia.

Shafran, I.; Kugler, L.; El Zaatari, F. A. K.; Naser, S. A.; Sandoval, J. Open clinical trial of rifabutin and clarithromycin therapy in Crohn's disease. Digestive and Liver Disease. January, 2002; 34 (1): 22-28. ISSN: 1590-8658
Descriptors: humans, Crohn's disease, etiology of Mycobacterium avium ssp. Paratuberculosis, rifabutin and clarithromycin anti-Mycobacterium avium subsp. Paratuberculosis treatment, evaluation of patient responses.

Soons, R.; Heuer, C.; Jackson, R.; Groenendaal. Computer simulation of Johne's disease in New Zealand dairy cattle. Proceedings of the New Zealand Society of Animal Production. 2002; 62: 294-298. ISSN: 0370-2731
NAL Call No.: 49.9 N483
Descriptors: disease control, dairy herds, review, models, the model 'JohneSSim', control measures, test and cull, contract heifer rearing, colostrum management, seasonal calving, risk factors, possible application to New Zealand.

Stabel, J. R.; Wells, S. J.; Wagner, B. A. Relationships between fecal culture, ELISA, and bulk tank milk test results for Johne's disease in US dairy herds. Journal of Dairy Science. March, 2002; 85 (3): 525-531. ISSN: 0022-0302
Journal URL: http://www.ADSA.org/jds
NAL Call No.: 44.8 J822
Descriptors: cows, estimate percentages of seropositive herds, Mycobacterium paratuberculosis in feces and milk, estimate of sensitivity, specificity, and predictive value, ELISA compared to fecal culture.

Stevenson, K.; Hughes, V,M. ; De Juan, L.; Inglis, N.F.; Wright, F.; Sharp, J.M. Molecular characterisation of pigmented and non-pigmented isolates of Mycobacterium avium subspecies paratuberculosis. Research in Veterinary Science. April, 2002; 72 (Supplement A): 29. ISSN: 0034-5288 Note: 56th Annual Conference of the Association of Veterinary Teachers and Research Workers on Current Topics in Veterinary Science, Scarborough, England, UK, March 25-27, 2002
NAL Call No.: 41.8 R312
Descriptors: epidemiology, Mycobacterium avium paratuberculosis, non-pigmented isolates, pigmented isolates, sheep.

Surujballi, Om P.; Romanowska, Anna; Sugden, Edward A.; Turcotte, Claude; Jolley, Michael E. A fluorescence polarization assay for the detection of antibodies to Mycobacterium bovis in cattle sera. Veterinary-Microbiology. [print] 20 June, 2002; 87 (2): 149-157. ISSN:0378-1135
Journal URL: http://www.elsevier.com/locate/vetmic
NAL Call No.: SF601.V44
Descriptors: cattle, sera, fluorescence polarization assay, fluorescein-labelled MPB70 protein antigen, M. bovis, accuracy of indicator test, lack of cross reaction.

Thompson, K. G.; West, D. M.; Anderson, P.V.A.; Burnham, D.L. Subclinical Johne's disease in sheep. Proceedings of the New Zealand Society of Animal Production. 2002; 62: 284-287. ISSN: 0370-2731
NAL Call No.: 49.9 N483
Descriptors: sheep, subclinical infection, 5 year study, disease impact on productivity, vaccines, Neoparasec, Gudair, experimental design.

Tooker, B. C.; Burton, J. L.; Coussens, P. M. Survival tactics of M. paratuberculosis in bovine macrophage cells. Veterinary Immunology and Immunopathology. 10 September, 2002; 87 (3-4): 429-437. ISSN: 0165-2427
Journal URL: http://www.elsevier.com/locate/vetimm
NAL Call No.: SF757.2.V38
Descriptors: Mycobacterium avium sps paratuberculosis, vesicles of macrophage cells, 3 theories of survival, affects on host protein expression, interference with macrophage activation, entry avoids, macrophage activation, DDRT-PCR, gene expression comparison to E coli.

VanLeeuwen, J. A.; Keefe, G. P.; Tiwari, A Seroprevalence and productivity effects of infection with bovine leukemia virus, Mycobacterium avium subspecies paratuberculosis, and Neospora caninum in Maritime Canadian dairy cattle. Bovine Practitioner. June, 2002; 36 (2): 86-91. ISSN: 0524-1685
NAL Call No.: SF779.5.A1B6
Descriptors: 90 dairy cattle herds, subclinical infection effects, milk production, serum sampling, ELISA antibody testing, Canada.

Walravens, K.; Marche, S.; Rosseels, V.; Wellemans, V.; Boelaert, F.; Huygen, K.; Godfroid, J. IFN-gamma diagnostic tests in the context of bovine mycobacterial infections in Belgium.
Veterinary-Immunology-and-Immunopathology. September 10, 2002; 87 (3-4): 401-406. ISSN: 0165-2427
Journal URL: http://www.elsevier.com/locate/vetimm
NAL Call No.: SF757.2.V38
Descriptors: cattle tuberculosis, Mycobacterium bovis, Mycobacterium avium ssp. Paratuberculosis testing strategies, differentiation between species, IFN-gamma responses of animals, experimental infection.

Wards, Barry J.; Collins, Desmond M. Slow-growing mycobacteria. Springer Lab Manuals. Electroformation of bacteria. 2000; Eynard-Natalie; Teissie-Justin: Eds. Springer-Verlag GmbH & Co. KG, Heidelberger Platz 3, D-14197, Berlin, Germany. P. 168-174. ISBN: 354066680X (paper)
Descriptors: bacterial pathogen, infection; methods, techniques, molecular genetics, Mycobacterium avium, Mycobacterium bovis, Mycobacterium paratuberculosis, Mycobacterium tuberculosis, microbiology of the listed species.

Waters, W. R.; Sacco, R. E.; Fach, S. J.; Palmer, M. V.; Olsen, S. C.; Kreeger, T. J. Analysis of mitogen-stimulated lymphocyte subset proliferation and nitric oxide production by peripheral blood mononuclear cells of captive elk (Cervus elaphus). Journal of Wildlife Diseases. April, 2002; 38 (2): 344-351. ISSN: 0090-3558
NAL Call No.: 41.9 W64B
Descriptors: elk, animal reservoirs, Brucella abortus, Mycobacterium bovis, Mycobacterium avium ssp. paratuberculosis, immune responses, Peripheral blood mononuclear cells, gammadelta TCR+ cells, pokeweed mitogen (PWM) stimulation, nitric oxide production, sIgM+ cells co-expressed MHC class II and B-B4, a B cell lineage marker.

Wells, Scott J.; Whitlock, Robert H.; Lindeman, Cynthia J. ; Fyock, Terry Evaluation of bacteriologic culture of pooled fecal samples for detection of Mycobacterium paratuberculosis. American Journal of Veterinary Research. August, 2002; 63 (8): 1207-1211. ISSN: 0002-9645
NAL Call No.: 41.8 Am3A
Descriptors: cattle, concentration of organisms, detection sensitivity, methods recommended to survey disease levels of cattle herds.

Wells, Scott J.; Whitlock, Robert H.; Wagner, Bruce A.; Collins, James; Garry, Franklyn; Hirst, Heather; Lawrence, John; Saville, William J. A.; Naugle, Alecia L. Larew. Sensitivity of test strategies used in the Voluntary Johne's Disease Herd Status Program for detection of Mycobacterium paratuberculosis infection in dairy cattle herds. Journal of the American Veterinary Medical Association. April 1, 2002; 220 (7): 1053-1057. ISSN: 0003-1488
Journal URL: http://www.avma.org
NAL Call No.: 41.8 Am3
Descriptors: dairy cattle herd evaluation; reliability of the Voluntary Johne's Disease Herd Status Program (VJDHSP); 64 dairy herds from Pennsylvania, Minnesota, Colorado, Ohio, and Wisconsin; serum testing for antibodies to Mycobacterium avium subsp. paratuberculosis; fecal testing.

West, D. M. Johne's disease: Why Johne's disease is so difficult to control. . Proceedings of the New Zealand Society of Animal Production. 2002; 62: 282-283. ISSN: 0370-2731
NAL Call No.: 49.9 N483
Descriptors: Mycobacterium avium ssp paratuberculosis, cattle, sheep, goats, deer, control issues, incubation periods, pathogen survival, subclinical infection shedding, unreliability of diagnostic tests, control comparisons between New Zealand and Australia.

Winterhoff, C.; Beyerbach, M.; Homuth, M.; Strutzberg, K.; Gerlach, G. F. Etablierung und Evaluation eines ELISA zum Nachweis von Antikoerpern gegen Mycobacterium avium sub-species paratuberculosis in Milch. [Evaluation of an ELISA for the detection of Mycobacterium avium subsp.paratuberculosis-specific antibodies in milk.] Deutsche Tieraerztliche Wochenschrift. Mai, 2002; 109 (5): 230-234. ISSN: 0341-6593 Note: In German.
NAL Call No.: 41.8 D482
Descriptors: dairy farms, economically viable diagnostic method, antibody detection, Svanovir(R)-ELISA, milk testing.

Return to Contents


2001

Allen, S.; Sotos, J.; Sylte, M. J.; Czuprynski, C. J. Use of hoechst 33342 staining to detect apoptotic changes in bovine mononuclear phagocytes infected with Mycobacterium avium subsp. paratuberculosis. Clinical and Diagnostic Laboratory Immunology. March, 2001; 8 (2): 460-464. ISSN: 1071-412X
Descriptors: cattle white cells, apoptosis in bovine monocytes, Hoechst 33342 staining, experimental infection effects, viable bacilli, effects of preincubation of monocytes with bovine growth hormone pre infection.

Banasure, K.D.; Basagoudanavar, S.H.; Chaudhury, P.; Tiwari, V.; Parihar, N.S.; Goswami, P.P. Identification and characterization of a gene encoding a 35-kDa protein from Mycobacterium avium subspecies paratuberculosis. FEMS Micro Biol Lett. Amsterdam, The Netherlands : Elsevier Science B.V. Mar 15, 2001. v. 196 (2) p. 195-199. ISSN: 0378-1097.
NAL Call No.: QR1.F44
Abstract: Mycobacterium avium subspecies paratuberculosis is the causative agent in Johne's disease, a chronic enteritis in ruminants. A gene homologous to that of 35-kDa antigen of Mycobacterium leprae was cloned and sequenced from Mycobacterium paratuberculosis. The database searches revealed 82.79% and 95.67% similarities of its nucleotide sequence, with those of immunodominant 35-kDa protein of M. leprae and M. avium, respectively.
Descriptors: Mycobacterium avium subsp. paratuberculosis, Johne's disease, ruminant enteritis,Mycobacterium leprae, nucleotide sequence comparison.

Bannantine, John P.; Stabel, Judith R. Identification of two Mycobacterium avium subspecies paratuberculosis gene products differentially recognised by sera from rabbits immunised with live mycobacteria but not heat-killed mycobacteria. Journal of Medical Microbiology. September, 2001; 50 (9): 795-804. ISSN: 0022-2615
NAL Call No.: QR1.J62
Descriptors: Csp1 was present in infected macrophages, novel antigens, pathogenesis.

Bannantine, J. P.; Zang, Q.; Li, L.; Kapur, V. Identification of unique regions within two genetically similar mycobacterial genomes. Abstracts of the General Meeting of the American Society for Microbiology. 2001; 101: 703-704. ISSN: 1060-2011. Note: 101st General Meeting of the American Society for Microbiology, Orlando, FL, USA, May 20-24, 2001
NAL Call No.: QR1.A5
Descriptors: Mycobacterium avium ssp. avium, Mycobacterium avium ssp. paratuberculosis, homology of genomes, non-aligned sequences 7 and 481, mycobacteriophage, possible application for diagnostic tests.

Beard, P. M.; Stevenson, K.; Pirie, A.; Rudge, K.; Buxton, D.; Rhind, S. M.; Sinclair, M. C.; Wildblood, L. A.; Jones, D. G.; Sharp, J. M. Experimental paratuberculosis in calves following inoculation with a rabbit isolate of Mycobacterium avium subsp. paratuberculosis.
NAL Call No.: QR46.J6
Descriptors: rabbits as reservoir of MAP, Scotland, experimental infection of calves with rabbit strain, strain virulence, wildlife reservoir potential of rabbits, factors for control measures.

Beard, P. M.; Rhind, S. M.; Buxton, D.; Daniels, M. J.; Henderson, D.; Pirie, A.; Rudge, K.; Greig, A.; Hutchings, M. R.; Stevenson, K.; Sharp, J. M. Natural paratuberculosis infection in rabbits in Scotland. Journal of Comparative Pathology. May, 2001; 124 (4): 290-299. ISSN: 0021-9975
NAL Call No.: 41.8 J82
Descriptors: 110 rabbits tested, Oryctolagus cuniculus, pathology, Mycobacterium avium ssp. paratuberculosis, histopathological lesions, granulomata, giant cells, formalin-fixed, paraffin wax embedded tissues.

Belloli, Angelo; Carli, Silvano; Pravettoni, Davide; Proverbio, Daniela; Giangaspero, Massimo; Lauzi, Stefania; Bonizzi, Luigi. Case study: Attempted treatment of a cow with Mycobacterium paratuberculosis enterocolitis. Bovine Practitioner. January, 2001; 35 (1): 56-60. ISSN: 0524-1685 Note: In English with French and English summaries.
NAL Call No.: SF779.5.A1B6
Descriptors: Holstein-Friesian dairy cow, naturally infection, enterocolitis, oral treatment rifampin, pyrazinamide and streptomycin for 7 days, fecal sampling, effects in populations of MAP.

Burton, Michael S.; Olsen, John H.; Ball, Ray L.; Dumonceaux, Genevieve A. Mycobacterium avium subsp. paratuberculosis infection in an addax (Addax nasomaculatus). Journal of Zoo and Wildlife Medicine. June, 2001; 32 (2): 242-244 ISSN: 1042-7260
NAL Call No.: SF601 J6
Descriptors: Addax nasomaculatus, captive bred male addax, Mycobacterium avium ssp. paratuberculosis, fecal sample, serology, semen culture, tissue biopsy, ileum, jejunum, colon, mesenteric lymph node.

Chamberlin, W.; Graham, D. Y.; Hulten, K.; El Zimaity, H. M. T.; Schwartz, M. R.; Naser, S.; Shafran, I.; El Zaatari, F. A. K. Review article: Mycobacterium avium subsp. paratuberculosis as one cause of Crohn's disease. Alimentary Pharmacology and Therapeutics. March, 2001; 15 (3): 337-346. ISSN: 0269-2813
Descriptors: etiology, zoonotic disease, possible cause of Crohn’s disease, review of the literature.

Cheville, N. F.; Hostetter, J.; Thomsen, B. V.; Simutis, F.; Vanloubbeeck, Y.; Steadham, E. Intracellular trafficking of Mycobacterium avium ss. paratuberculosis in macrophages. DTW-Deutsche-Tieraerztliche-Wochenschrift. Juni, 2001; 108 (6): 236-243. ISSN: 0341-6593 Note: In English with English and Germany summaries.
NAL Call No.: 41.8 D482
Descriptors: Johne’s disease; cattle, bacterial growth in macrophages; immunocytochemical markers for light, confocal and electron microscopy; bacterial attachment, phagosomal acidification, phagolysosomal degradation and apoptosis; blockage of phagosomes; nude mouse model; bacteriophorous vacuole formation.

Collins, Michael T.; Lisby, Gorm; Moser, Claus; Chicks, Debra; Christensen, Steen; Reichelderfer, Mark; Hoiby, Niels; Harms, Bruce A.; Thomsen, Ole O.; Skibsted, Ulrik; Binder, Vibeke. Results of multiple diagnostic tests for Mycobacterium avium subsp. paratuberculosis in patients with inflammatory bowel disease and in controls. Journal of Clinical Microbiology. December, 2001; 38 (12): 4373-4381. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: diagnostic tests compared, 5 methods routinely used on animals, PCR for IS900, etiopathogenesis of IBD.

Corn, Joseph L.; Nettles, Victor F. Health protocol for translocation of free-ranging elk.
Journal of Wildlife Diseases. July, 2001; 37 (3): 413-426. ISSN: 0090-3558
NAL Call No.: 41.9 W64B
Descriptors: elk, Cervus elaphus, restoration programs, issues of translocation, disease concerns, health status, classification of infectious agents and ectoparasites, ability to establish disease in new area, potential damage to wildlife in new area, list of many diseases and parasites, including M. avium ssp paratuberculosis.

Coussens, P. M.; Tooker, B.; Nobis, W.; Coussens, M. J. Genetics and genomics of susceptibility to mycobacterial infection in cattle. Journal of Dairy Science. 2001; 84 (Supplement 1): 57. ISSN: 0022-0302 Note: Joint Meeting of the American Diary Science Association, American Meat Science Association, American Society of Animal Science and the Poultry Science Association, Indianapolis, Indiana, USA, July 24-28, 2001.
Journal URL: http://www.ADSA.org/jds
NAL Call No.: SF221 A4
Descriptors: cattle, susceptibility to disease factors, breeding, genetics, genomics, Mycobacterium-bovis, Mycobacterium avium ssp. Paratuberculosis.

Daniels, M.J.; Ball, N.; Hutchings, M.R.; Greig, A. The grazing response of cattle to pasture contaminated with rabbit faeces and the implications for the transmission of paratuberculosis. Vet J. London : Balliere Tindall, c1997. May 2001. v. 161 (3) p. 306-313. ISSN: 1090-0233
NAL Call No.: SF601.V484
Abstract: Transmission of Mycobacterium avium subspecies paratuberculosis, the organism responsible for paratuberculosis (or Johne's disease) in ruminants, occurs through the faecal-oral route. As M. a. paratuberculosis has been isolated from rabbit faeces, cattle grazing rabbit faecal contaminated pasture may thus be at risk. A herd of 57 beef cattle was monitored on a farm in Perthshire, throughout the 1999 'grazing year', to investigate whether the cattle avoided rabbit faecal contaminated pasture and thus the potential for disease transmission. Grazing was measured every two days over eight rotations by sward heights on 40 marked treatment plots (0.5 m X 0.5 m) to which 0, 10, 50 and 250 rabbit faecal pellets were added. Cattle were also monitored by an active transponder system which enabled individual animals contacting two plots per field rotation (one control and one contaminated) to be recorded. During the monitored grazing year, grazing pressure was low with a net mean sward offtake of 18% of sward height per rotation. There were no significant differences between rabbit faecal treatments (0, 10, 50 and 250 pellets) with respect to the height or proportion of sward removed, or between the numbers of contacts made by cattle on contaminated and uncontaminated plots. Over 90% of all the cattle contacted contaminated plots, indicating that the potential for disease transmission was widespread among the herd. To our knowledge, this is the first reported instance of a lack of avoidance by grazing cattle towards swards contaminated with faeces, and implies that the potential for transmission of paratuberculosis from rabbit contaminated pasture is high.
Descriptors: beef cattle, Johne's disease, grazing behavior, pastures, rabbit fecal droppings, microbial contamination,disease transmission, paratuberculosis, Mycobacterium avium ssp paratuberculosis, disease transmission risk, Scotland.

Dargatz, David A.; Byrum, Beverly A.; Barber, Linda K.; Sweeney, Raymond W.; Whitlock, Robert H.; Shulaw, William P.; Jacobson, Richard H.; Stabel, Judith R. Evaluation of a commercial ELISA for diagnosis of paratuberculosis in cattle. Journal of the American Veterinary Medical Association. April 1, 2001; 218 (7): 1163-1166. ISSN: 0003-1488
NAL Call No.: 41.8 Am3
Descriptors: evaluate sensitivity and specificity, new ELISA for antibodies, Mycobacterium avium ssp paratuberculosis, serum samples, cattle, level of test sensitivity and reliability, interpretation of test results.

Dargatz, David A.; Byrum, Beverly A.; Hennage,r Steven G.; Barber, Linda K.; Kopral, Christine A.; Wagner, Bruce A.; Wells, Scott J. Prevalence of antibodies against Mycobacterium avium subsp paratuberculosis among beef cow-calf herds. Journal of the American Veterinary Medical Association. August 15, 2001; 219 (4): 497-501. ISSN: 0003-1488
NAL Call No.: 41.8 Am3
Descriptors: beef cattle, levels of infection, 380US herds in 21 states, serum testing for antibodies, ELISA, herd management practices, rather low rate of infection.

Dimareli, Malli Z.; Sarris, K. Comparison of DNA probe test and cultivation methods for detection of Mycobacterium avium subsp paratuberculosis in caprine and ovine faeces. Australian Veterinary Journal. January, 2001; 79 (1): 47-50. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: 3 detection methods compared, DNA probe, double incubation method, conventional culture method, Herrold's medium, goats, sheep, fecal sampling, levels of sensitivity, use in control measures.

Dinsmore, R.P. Updates on Johne's Disease. Large Anim Pract. Irvine, Calif. : Veterinary Practice Pub. Co., c1997. Mar/Apr 2000. v. 21 (2) p. 20, 24-25. ISSN: 1092-7603
NAL Call No.: SF601.B6
Descriptors: dairy cows, beef cattle, etiology, paratuberculosis, Mycobacterium avium ssp paratuberculosis, disease prevalence, Crohn's disease in humans, disease control, milkborne diseases.

Dundee, L.; Grant, I. R.; Ball, H. J.; Rowe, M. T. Comparative evaluation of four decontamination protocols for the isolation of Mycobacterium avium subsp. paratuberculosis from milk. Letters in Applied Microbiology. September, 2001; 33 (3): 173-177. ISSN: 0266-8254
NAL Call No.: QR1.L47
Descriptors: spiked milk, 4 chemical decontamination protocols, (1) hexadecylpyridinium chloride (HPC) for 5 h; (2) and (3) Cornell methods employing brain heart infusion broth containing 0.75% (w/v) and 0.9% (w/v) HPC, respectively; and (4) a C18-carboxypropylbetaine (CB-18TM) method, evaluation of effectiveness and suitability.

Dupont, Chris; Murray, Alan. Identification, cloning and expression of sodC from an alkaline phosphatase gene fusion library of Mycobacterium avium subspecies paratuberculosis. Microbios. 2001; 106 (Supplement 1): 7-19. ISSN: 0026-2633
NAL Call No.: QR1 M54
Descriptors: phoA gene technology, sodC gene, copper and zinc cofactored superoxide dismutase, recombinant protein, enzymatic activity.

Ellingson, Jay L. E.; Stabel, Judith R. Species-specific genetic identification of Mycobacterium paratuberculosis. Official Gazette of the United States Patent and Trademark Office Patents. [e-file] Aug. 21, 2001; 1249 (3): No Pagination. ISSN: 0098-1133
NAL Call No.: T223.A21
Abstract: An M. paratuberculosis gene referred to as hspX provides a useful target region for the construction of suitable probes and primers that are species-specific for distinguishing M. paratuberculosis from related mycobacteria in a test sample. M. paratuberculosis is the causative agent of Johne's disease and has been isolated from human patients with Crohn's disease.
Descriptors: hspX gene, possible target region for probes and primers, for possible diagnostic method.

El Zaatari, Fouad A. K.; Osato, Michael S.; Graham, David Y. Etiology of Crohn's disease: The role of Mycobacterium avium paratuberculosis. Trends in Molecular Medicine. June, 2001; 7 (6): 247-252. ISSN: 1471-4914
Descriptors: causal organism, Crohn’s disease, detection of IS900, PCR, situ hybridization in tissues, serologic immune response to MAP antigens.

Englund, S.; Bolske, G.; Ballagi, Pordany A.; Johansson, K. E. Detection of Mycobacterium avium subsp. paratuberculosis in tissue samples by single, fluorescent and nested PCR based on the IS900 gene. Veterinary Microbiology. 8 August, 2001; 81 (3): 257-271. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: detection method, comparison of PCR methods, pluses and minuses of methods discussed.

Fischer, O.; Matlova, L.; Dvorska, L.; Svastova, P.; Bartl, J.; Melicharek, I.; Weston, R. T.; Pavlik, I. Diptera as vectors of mycobacterial infections in cattle and pigs. Medical and Veterinary Entomology. June, 2001; 15 (2): 208-211. ISSN: 0269-283X
NAL Call No.: RA639.M44
Descriptors: 7791 adult Diptera, cattle herds and pig herds with mycobacterial infections, Mycobacterium intracellulare, Mycobacterium avium ssp. avium (serotype 8), Mycobacterium avium ssp.avium (serotype 8), Drosophila, Musca, Mycobacterium fortuitum, Mycobacterium scrofulaceum, Mycobacterium phlei, Scatophaga Meigen, Calliphora vicina Robineau-Desvoidy, Lucilia Caesar, Stomoxys calcitrans, infected flies role in spreading disease.

Goethe, R.; Jeckstadt, S.; Kuehnel, M.; zur Lage, S.; Weiss, S.; Valentin, Welgand P. Modulation of macrophage functions by Mycobacterium avium ssp. Paratuberculosis. Biology of the Cell Paris. October, 2001; 93 (3-4): 211. ISSN: 0248-4900 Note: First Joint French-German Congress on Cell Biology, Strasbourg, France, November 07-09, 2001.
NAL Call No.: QH201.J6
Descriptors: bacterial pathogen behavior, impacts on immune system, white blood cells.

Grant, I. R.; O' Riordan, L. M.; Ball, H. J.; Rowe, M. T. Incidence of Mycobacterium paratuberculosis in raw sheep and goats' milk in England, Wales and Northern Ireland. Veterinary Microbiology. 20 March, 2001; 79 (2): 123-131. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: sheep and goats, milk samples, assay, Johne’s disease status, risks.

Grant, Irene R.; Rowe, Michael T.; Dundee, Louise; Hitchings, Edward. Mycobacterium avium ssp. paratuberculosis: Its incidence, heat resistance and detection in milk and dairy products. International Journal of Dairy Technology. February, 2001; 54 (1): 2-13. ISSN: 1364-727X
NAL Call No.: SF221.I58
Descriptors: Johne’s disease, Crohn’s disease, possible food borne disease, contaminated dairy products, pasteurized milk, need for research on milk processing and on farm prevention.

Ghobrial, G.; Naser, S. A. In vitro evaluation of nicotine effect on mycobacterial growth.
Abstracts of the General Meeting of the American Society for Microbiology.
2001; 101: 704. ISSN: 1060-2011 Note: 101st General Meeting of the American Society for Microbiology, Orlando, FL, USA, May 20-24, 2001
NAL Call No.: QR1.A5
Descriptors: alkaloid treatment, various nicotine concentrations, effect on Mycobacterium avium subsp. avium, M. avium subsp. paratuberculosis, M. intracellulare, M. smegamtis and M. tuberculosis strains H37Ra and ATCC 2577, potential therapeutic application.

Groenendaal, H.; Nielen, M.; Hesselink, J.W. Development of the Dutch Johne's disease control programme supported by a simulation model. Proceedings of a meeting, Society for Veterinary Epidemiology and Preventive Medicine. [Great Britain] : The Society, 1983. 2001. p. 141-152. ISSN: 0956-7496. Note: Meeting held on March 28-30, 2001, Noordwijkerhout, The Netherlands.
NAL Call No.: SF780.9.S63
Descriptors: paratuberculosis, control programs, simulation models, Johne's disease, Netherlands.

Gwozdz, J. M.; Thompson, K. G.; Manktelow, B. W. Lymphocytic neuritis of the ileum in sheep with naturally acquired and experimental paratuberculosis. Journal of Comparative Pathology. May, 2001; 124 (4): 317-320. ISSN: 0021-9975
NAL Call No.: 41.8 J82
Descriptors: sheep, mononucleate inflammatory cells, ileal submucosa, lesions, experimental infection, Mycobacterium avium ssp. paratuberculosis.

Harris, Janet E.; Lammerding, Anna M. Crohn's disease and Mycobacterium avium subsp. paratuberculosis: Current Issues. Journal of Food Protection. December, 2001; 64 (12): 2103-2110. ISSN: 0362-028X
NAL Call No.: 44.8 J824
Descriptors: human health risks, exposure to contaminated milk, Johne’s disease, etiology of Crohn’s disease, food risk communication.

Harris, N. Beth; Barletta, Raul G. Mycobacterium avium subsp. paratuberculosis in veterinary medicine. Clinical Microbiology Reviews. July, 2001; 14 (3): 489-512. ISSN: 0893-8512
NAL Call No.: QR67.C54
Descriptors: bacterial disease, clinical signs, diagnosis, treatment, necropsy.

Hughes, V. M.; Stevenson, K.; Sharp, J. M. Improved preparation of high molecular weight DNA for pulsed-field gel electrophoresis from mycobacteria. Journal of Microbiological Methods. April, 2001; 44 (3): 209-215. ISSN: 0167-7012
NAL Call No.: QR65.J68
Descriptors: epidemiology, clonal identity of bacterial, difficulty of getting quality genomic DNA, various species in from stirred cultures tested, standardized method, typing method, Mycobacterium avium, Mycobacterium avium ssp. paratuberculosis, Mycobacterium bovis, Mycobacterium malmoense, Mycobacterium phlei strain NCTC-8151 Mycobacterium smegmatis strain NCTC-8159; Mycobacterium terrae strain NCTC-9259; Mycobacterium tuberculosis strain NCTC-14323.

Huntley, J. F. J.; Stabel, J. R.; Bannantine, J. P. Expression library immunization of mice identified five genomic DNA clone pools that are protective against colonization with Mycobacterium avium subsp. paratuberculosis. Abstracts of the General Meeting of the American Society for Microbiology. 2001; 101: 710. ISSN: 1060-2011 Note: 101st General Meeting of the American Society for Microbiology, Orlando, FL, USA, May 20-24, 2001
NAL Call No.: QR1.A5
Descriptors: Johne's disease, Mycobacterium avium subsp. paratuberculosis, 78 gene pools, PCR, C57BL/6J mice (6 week old, male, 20 grams), immunized, abdominal inoculation, each clone pool via gene gun delivery, live bacteria challenge, effectiveness of vaccinations.

Inglis, Neil F.; Stevenson, Karen; Davies, Richard C.; Heaslip, Darragh G.; Sharp, J. Michael. Unique expression of a highly conserved mycobacterial gene in IS901+ Mycobacterium avium. Microbiology Reading. June, 2001; 147 (6): 1557-1564. ISSN: 1350-0872
NAL Call No.: QR1.J64
Descriptors: novel protein antigen, p40 gene, strain differences, nucleotide sequence analysis, M. avium, M. avium subsp. paratuberculosis, M. bovis, M. leprae, M. smegmatis, M. tuberculosis, putative promoter region, livestock and bird strains. Nucleotide sequence: AF247653: GenBank, nucleotide sequence.

Johnson, Y. J.; Kaneene, J. B.; Gardiner, J. C.; Lloyd, J. W.; Sprecher, D. J.; Coe, P. H. The effect of subclinical Mycobacterium paratuberculosis infection on milk production in Michigan dairy cows. Journal of Dairy Science. October, 2001; 84 (10): 2188-2194. ISSN: 0022-0302
NAL Call No.: 44.8 J822
Descriptors: cattle, subclinical diagnosis, milk, protein, fat production, fecal culture, affect of parity on milk production.

Kalis, Cees H. J.; Hesselink, Jan Willem; Barkema, Herman W.; Collins, Michael T. Use of long-term vaccination with a killed vaccine to prevent fecal shedding of Mycobacterium avium subsp paratuberculosis in dairy herds. American Journal of Veterinary Research. February, 2001; 62 (2): 270-274. ISSN: 0002-9645
NAL Call No.: 41.8 Am3A
Descriptors: dairy cows, vaccination of calves with killed vaccine, level of fecal shedding after vaccination, prevention and control method, compared to culture and cull, 58 Dutch dairy herds, lack of efficacy, Netherlands.

Katayama, Nobuya; Tanaka, Chigusa ; Fujita, Takumi; Suzuki, Takumi; Watanabe, Shigeyuki; Suzuki, Shuka. Effects of silage fermentation and ammonia treatment on activity of Mycobacterium avium subsp. paratuberculosis. Grassland Science. August, 2001; 47 (3): 296-299. ISSN: 0447-5933 Note: In Japanese with English and Japanese summaries.
NAL Call No.: 60.9 J27
Descriptors: silo moisture and acidity, storage and survivability, moisture, ammonia treated silages, organic acid, high pH, pouched silages, alfalfa hay, grass and forage crops, feed contamination control.

Kennedy, D. J.; Benedictus, G. Control of Mycobacterium avium subsp. paratuberculosis infection in agricultural species. Revue Scientifique et Technique Office International des Epizooties. April, 2001; 20 (1): 151-179. ISSN: 0253-1933 Note: In English with English, French and Spanish summaries.
NAL Call No.: SF781.R4
Descriptors: livestock, prevention and control programs, surveillance, issues and concerns of designing and implementing a program, costs of programs, epidemiology, diagnostic tools.

Kennedy, D. J.; Allworth, B. Ovine Johne's disease: Progress and challenges. Australian Veterinary Journal. July, 2001; 79 (7): 482-483. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: sheep, Mycobacterium avium paratuberculosis, epidemiology, prevention and control concerns.

Klawonn, W.; Draeger, K.; Guetler, S.; Zimmer, K.; Hess, R. G.; Baumgartner, W. Zur Eignung verschiedener kommerziell erhaeltlicher ELISA-Systeme fuer den Antikoerpernachweis bei Mycobacterium avium subsp. paratuberculosis-ausscheidenden Tieren. [Evaluation of various ELISA kits for the detection of antibodies to Mycobacterium avium subsp. paratuberculosis in cattle. ] Tieraerztliche Umschau. 1 Dezember, 2001; 56 (12): 648-654. ISSN: 0049-3864. Note: In German.
NAL Call No.: 41.8 T445
Descriptors: cows, fecal secretors, IDEXX/CSL-ELISA, HerdCheck-ELISA, Svanovir-ELISA, ELISA from PourQuier Institute, antibody testing, test sensitivity and reliability, results compared, control programs.

Klijn, N.; Herrewegh, A. A. P. M.; de Jong, P. Heat inactivation data for Mycobacterium avium subsp. paratuberculosis: Implications for interpretation. Journal of Applied Microbiology. October, 2001; 91 (4): 697-704. ISSN: 1364-5072
NAL Call No.: QR1 J687
Descriptors: factors for future research, calculated heat inactivation, modeling and inactivation curve of MAP, cell clumping, food safety testing.

Koehler, H.; Gyra, H.; Zimmer, K.; Draeger, K. G.; Burkert, B.; Lemser, B.; Hausleithner, D.; Cussler, K.; Klawonn, W.; Hess, R. G. Immune reactions in cattle after immunization with a Mycobacterium paratuberculosis vaccine and implications for the diagnosis of M. paratuberculosis and M. bovis infections. Journal of Veterinary Medicine Series B. April, 2001; 48 (3): 185-195. ISSN: 0931-1793
NAL Call No.: 41.8 Z52
Descriptors: calves, experimental immunization, live modified Mycobacterium paratuberculosis vaccine, shedding, tuberculin skin test, diagnostic tests, antibody enzyme-linked immunosorbent assay, interferon-gamma test, polymerase chain reaction, interferon-gamma production, check for infection.

Koets, Ad P.; Rutten, Victor P. M. G.; deBoer, Masja; Bakker, Douwe; Valentin, Weigand, Peter; van Eden, Willem. Differential changes in heat shock protein-, lipoarabinomannan-, and purified protein derivative-specific immunoglobulin G1 and G2 isotype responses during bovine Mycobacterium avium subsp. paratuberculosis infection. Infection and Immunity. March, 2001; 69 (3): 1492-1498. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: cattle, changes from asymptomatic to clinical stage, serological responses, immune responsiveness, IgG1, IgG2, Hsp70, Hsp65.

Lee, H.; Stabel, J. R.; Kehrli, M. E. Jr. Cytokine gene expression in ileal tissues of cattle infected with Mycobacterium paratuberculosis. Veterinary Immunology and Immunopathology. September 28, 2001; 82 (1-2): 73-85. ISSN: 0165-2427
NAL Call No.: SF757.2.V38
Descriptors: cows, cattle, immune regulation impacts, interleukin-1alpha (IL-1alpha), IL-1beta, IL-6, and interferon-gamma (IFN-gamma), comparison between infected and non-infected animals.

Leitch, E. Carol McWilliam; Duncan, Sylvia H.; Stanley, Karen N.; Stewart, Colin S. Dietary effects on the microbiological safety of food. Proceedings of the Nutrition Society. May, 2001; 60 (2): 247-255. ISSN: 0029-6651
NAL Call No.: 389.9 N953
Descriptors: rumen simulating fermentors, studying survival of food borne pathogens, E. coli 0157:H7, salmonella, Helicobacter pylori, Mycobacterium paratuberculosi, Campylobacter and Listeria.

Liu, X.; Feng, Z.; Harris, N.B.; Cirillo, J.D.; Bercovier, H.; Barletta, R.G. Identification of a secreted superoxide dismutase in Mycobacterium avium ssp. paratuberculosis. FEMS Micro Biol Lett. Amsterdam, The Netherlands : Elsevier Science B.V. Aug 21, 2001. v. 202 (2) p. 233-238. ISSN: 0378-1097
NAL Call No.: QR1.F44
Abstract: Mycobacterium avium ssp. paratuberculosis (M. paratuberculosis), the causative agent of Johne's disease, is an important animal pathogen that has also been implicated in human disease. The major proteins expressed by M. paratuberculosis were analyzed by two-dimensional gel electrophoresis, and a superoxide dismutase (Sod) was identified from this protein profile. The M. paratuberculosis Sod has a molecular mass of 23 kDa and an isoelectric point of 6.1. Sequence analysis of the corresponding sodA gene from M. paratuberculosis indicates that this protein is a manganese-dependent enzyme. We show that the M. paratuberculosis Sod is actively secreted, suggesting that it may elicit a protective cellular immune response in the host during infection.
Descriptors: Mycobacterium avium ssp. paratuberculosis, Johne's disease, zoonoses, protein analysis, superoxide dismutase, host immune response.

Manning, E. J. B.; Collins, M. T. Mycobacterium avium subsp. paratuberculosis: Pathogen, pathogenesis and diagnosis. Revue Scientifique et Technique Office International des Epizooties. April, 2001; 20 (1): 133-150. ISSN: 0253-1933 Note: In English with English, French, and Spanish summaries.
NAL Call No.: SF781.R4
Descriptors: domestic ruminants, primates, rabbits, stoats, foxes, free ranging and captive wildlife, prevalence in Europe, US, herd size effects, Australia infections rates, economic effects.

Marsh, I. B.; Whittington, R. J. Progress towards a rapid polymerase chain reaction diagnostic test for the identification of Mycobacterium avium subsp. paratuberculosis in faeces. Molecular and Cellular Probes. April, 2001; 15 (2): 105-118. ISSN: 0890-8508
NAL Call No.: RB43.7.M63
Descriptors: sheep, pooled fecal samples, diagnostic test evaluation, simpler direct PCR technique using primers from the 5' region of IS900, Mycobacterium avium subsp. paratuberculosis, hybridization capture polymerase chain reaction (HC-PCR), level of sensitivity, flock diagnosis for Johne’s.

Mason, O.; Marsh, I. B.; Whittington, R. J. Comparison of immunomagnetic bead separation-polymerase chain reaction and faecal culture for the detection of Mycobacterium avium subsp paratuberculosis in sheep faeces. Australian Veterinary Journal. July, 2001; 79 (7): 497-500. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: fecal culture, sheep, detection methods, comparison study.

Miltner, E.; Cirillo, J.; Bermudez, L. E. Identification of Mycobacterium avium genes associated with the ability to invade intestinal epithelial cells. Abstracts of the General Meeting of the American Society for Microbiology. 2001; 101: 708. ISSN: 1060-2011 Note: 101st General Meeting of the American Society for Microbiology, Orlando, FL, USA, May 20-24, 2001.
NAL Call No.: QR1.A5
Descriptors: genes upregulated during binding and invasion of mucosal epithelial cells, L5 phage promoter, clone evaluation for increased expression, ability to invade Hep-2 epithelial cells, infection process.

Muskens, J.; Bakker, D.; de Boer, J.; van Keulen, L. Paratuberculosis in sheep: Its possible role in the epidemiology of paratuberculosis in cattle. Veterinary Microbiology. 26 January, 2001; 78 (2): 101-109. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: sheep; diagnosis of flock infection; shared sheep and cattle grazing; biochemistry, serology, and intradermal testing; necropsy results; epidemiology; disease transmission.

Nielsen, S.S.; Houe, H.; Thamsborg, S.M.; Bitsch, V. Comparison of two enzyme-linked immunosorbent assays for serologic diagnosis of paratuberculosis (Johne's disease) in cattle using different subspecies strains of Mycobacterium avium. J Vet Diagn Invest. Lawrence, Kan. : AAVLD. Mar 2001. v. 13 (2) p. 164-166. ISSN:1040-6387
NAL Call No.: SF774.J68
Descriptors: cattle, Mycobacterium avium ssp paratuberculosis, paratuberculosis, bacterial antigens, ELISA, immunodiagnosis, antibody testing accuracy.

Odumeru, Joseph; Gao, Anli; Chen, Shu; Raymond, Melinda; Mutharia, Lucy. Use of the bead beater for preparation of Mycobacterium paratuberculosis template DNA in milk. Canadian Journal of Veterinary Research. October, 2001; 65 (4): 201-205. ISSN: 0830-9000 Note: In English with a French summary.
NAL Call No.: SF601.C24
Descriptors: detection in milk samples, PCR, lysing bacteria, bead beater, freeze-thaw, InstaGene Matrix, QIAamp Tissue Kit, sensitivity levels.

Olsen, Ingrid; Tryland, Morten; Wiker, Harald G.; Reitan, Liv J. AhpC, AhpD, and a secreted 14-kilodalton antigen from Mycobacterium avium subsp. paratuberculosis distinguish between paratuberculosis and bovine tuberculosis in an enzyme-linked immunosorbent assay. Clinical and Diagnostic Laboratory Immunology. July, 2001; 8 (4): 797-801. ISSN: 1071-412X
Descriptors: cattle, sera, natural and experimental infections, antibody testing, ELISA, experimental TB, responses compared, AhpC and AhpD, purified antigens needed to differentiate species of Mycobacterium.

Olsen, Ingrid; Reitan, Liv J.; Wiker, Harald G. Distinct differences in repertoires of low-molecular-mass secreted antigens of Mycobacterium avium complex and Mycobacterium tuberculosis. Journal of Clinical Microbiology. December, 2001; 38 (12): 4453-4458. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: antigens, culture filtrate, sodium dodecyl sulfate-polyacrylamide gel electrophoresis, Western blot, homologous gene, differential expression.

Olsen, I.; Storset, A. K. Innate IFN-gamma production in cattle in response to MPP14, a secreted protein from Mycobacterium avium subsp. paratuberculosis. Scandinavian Journal of Immunology. September, 2001; 54 (3): 306-313. ISSN: 0300-9475
Descriptors: cattle, calves, experimental infection, testing infected and non-infected for interferon (IFN)-gamma production, MPP14, CD8+ cells, CD4+cells, protein derivative, interference with diagnostic tests.

Paolicchi, F. A.; Vagnozzi, A; Morsella, C. G.; Verna, A. E.; Massone, A. R.; Portiansky, E. L.; Gimeno, E. J. Paratuberculosis in red deer (Cervus elaphus): An immunohistochemical study.
Journal of Veterinary Medicine Series B
. May, 2001; 48 (4): 313-320. ISSN: 0931-1793
NAL Call No.: 41.8 Z52
Descriptors: deer, methods comparison study, immunohistochemistry, serological results, histological results, tissue samples from intestinge, mesemteric lymph nodes, bacterial isolation, Ziehl-Neelsen stained bacteria, macrophages, Langhans-type giant cells.

Parrish, Nikki M.; Houston, Todd; Jones, Paul B.; Townsend, Craig; Dick, James D. In vitro activity of a novel antimycobacterial compound, N-octanesulfonylacetamide, and its effects on lipid and mycolic acid synthesis. Antimicrobial Agents and Chemotherapy. April, 2001; 45 (4): 1143-1150. ISSN: 0066-4804
NAL Call No.: RM265.A5132
Descriptors: N-octanesulfonylacetamide (OSA), possible inhibitor of fatty acid and mycolic acid biosynthesis, Mycobacterium, comparative study of species and strains, slow and rapid growing species effects compared, disruption of cell wall synthesis, incomplete septum formation, OSA inhibition in growth in both isoniazid-resistant and multidrug resistant strains of M. tuberculosis.

Mycobacterium avium, Mycobacterium bovis, Mycobacterium kansasii, Mycobacterium tuberculosis, in vitro activity, mycolic acid.

Pearce, Lindsay E.; Truong, H. Tuan; Crawford, Robert A.; Yates, Gary F.; Cavaignac, Sonia; de Lisle, Geoffrey W. Effect of turbulent-flow pasteurization on survival of Mycobacterium avium subsp. paratuberculosis added to raw milk. Applied and Environmental Microbiology. ] September, 2001; 67 (9): 3964-3969. ISSN: 0099-2240
NAL Call No.: 448.3 Ap5
Descriptors: heat sensitivity, experimentally infected raw milk, ATCC 19698 and ATCC 43015 strains, 3 bovine isolates, contaminated fecal material, treatments of 65,66,69 and 72degrees C, survival rates.

Pillai, Shreekumar R.; Jayarao, Bhushan M.; Gummo, Jennifer D.; Hue, Eric C. Jr.; Tiwari, Deepanker; Stabel, Judith R.; Whitlock, Robert H. Identification and sub-typing of Mycobacterium avium subsp. paratuberculosis and Mycobacterium avium subsp. avium by randomly amplified polymorphic DNA. Veterinary Microbiology. 2 April, 2001; 79 (3): 275-284. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: commercial kit, identification and sub-typing, selection of a suitable primer that would permit identification and sub-typing of Mycobacterium avium ssp. paratuberculosis and Mycobacterium avium ssp. avium, primer OPE-20 (5'-AAC-GGT-GAC-C-3'), fingerprint patters, fragments, cattle, sheep and human isolates, ATCC strains.

Rajukumar, K.; Tripathi, B. N.; Kurade, N. P.; Parihar, N. S. An enzyme-linked immunosorbent assay using immunoaffinity-purified antigen in the diagnosis of caprine paratuberculosis and its comparison with conventional ELISAs. Veterinary Research Communications. October, 2001; 25 (7): 539-553. ISSN: 0165-7380
NAL Call No.: SF601.38
Descriptors: APA ELISA, detection of antibodies in goat sera, fecal cultures, histopathology for disease confirmation, test evaluation.

Rossiter, C. A.; Henning, W. R. Isolation of Mycobacterium paratuberculosis (M. ptb) from thin market cows at slaughter. Journal of Dairy Science. 2001; 84 (Supplement 1): 113-114. ISSN: 0022-0302 Note: Joint Meeting of the American Diary Science Association, American Meat Science Association, American Society of Animal Science and the Poultry Science Association, Indianapolis, Indiana, USA, July 24-28, 2001
Journal URL: http://www.ADSA.org/jds
NAL Call No.: SF221 A4
Descriptors: cattle, disease testing, slaughter, incidence of disease, Johne’s disease, Mycobacterium avium ssp. paratuberculosis.

Rowan, Neil J.; MacGregor, Scott J.; Anderson, John G.; Cameron, Douglas; Farish, Owen. Inactivation of Mycobacterium paratuberculosis by pulsed electric fields. Applied and Environmental Microbiology. June, 2001; 67 (6): 2833-2836. ISSN: 0099-2240
NAL Call No.: 448.3 Ap5
Descriptors: viability testing, M. paratuberculosis cells, peptone water and sterilized cow’s milk, cellular damage.

Ryan, Paul; Bennett, Michael W.; Aarons, Simon; Lee, Gary; O' Connell, Joe; Collins, John K.; O' Sullivan, Gerald C.; Shanahan, Fergus. A search for Mycobacterium paratuberculosis by PCR in Crohn's granulomas isolated laser capture microdissection. Gastroenterology. April, 2001; 120 (5 Supplement 1): A.325. ISSN: 0016-5085 Note: 102nd Annual Meeting of the American Gastroenterological Association and Digestive Disease Week, Atlanta, Georgia, USA, May 20-23, 2001
Journal URL: http://www.gastrojournal.org/
NAL Call No.: RC799.G37
Descriptors: diagnostic method, cattle, humans, Johne’s, Crohn’s disease, Mycobacterium avium ssp. Paratuberculosis.

Sasahara, K. C.; Boor, K. Detection of viable Mycobacterium avium subsp. paratuberculosis using luciferase reporter systems. Abstracts of the General Meeting of the American Society for Microbiology. 2001; 101: 576. ISSN: 1060-2011 Note: 101st General Meeting of the American Society for Microbiology, Orlando, FL, USA, May 20-24, 2001
NAL Call No.: QR1.A5
Descriptors: Mycobacterium avium ssp. paratuberculosis, rapid detection methods, contamination of milk, mycobacterial luciferase reporter system, pathogen survivability.

Schwartz, Brett D.; De Voss, James J. Structure and absolute configuration of mycobactin J. Tetrahedron Letters. 21 May, 2001; 42 (21): 3653-3655. ISSN: 0040-4039
NAL Call No.: 385 T29
Descriptors: siderophore, Mycobacterium avium ssp. paratuberculosis, stereochemistry, methods, applications to other mycobactins.

Sechi, Leonardo A.; Manuela, Mura; Francesco, Tanda; Amelia, Lissia; Antonello, Solinas; Giovanni, Fadda; Stefania, Zanetti. Identification of Mycobacterium avium subsp. paratuberculosis in biopsy specimens from patients with Crohn's disease identified by in situ hybridization. Journal of Clinical Microbiology. December, 2001; 39 (12): 4514-4517. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: Crohn’s disease, cell wall deficient Mycobacterium avium ssp. paratuberculosis, paraffin-embedded tissue specimens, humans.

Secott, T.E.; Lin, T.L.; Wu, C.C. Fibronectin attachment protein homologue mediates fibronectin binding by Mycobacterium avium subsp. paratuberculosis. Infect Immun. Washington, D.C., American Society for Microbiology. Apr 2001. v. 69 (4) p. 2075-2082.
NAL Call No.: QR1.I57 ISSN: 0019-9567
Abstract: Attachment of Mycobacterium avium subsp. paratuberculosis to host tissue and penetration of mucosal surfaces are pivotal events in the pathogenesis of Johne's disease. Fibronectin (FN) binding is required for attachment and internalization of several mycobacteria by epithelial cells in vitro. The objective of this study was to further characterize the FN binding activity of M. avium subsp. paratuberculosis. Although the bacteria bound FN poorly at pH above 7, brief acid pretreatment greatly enhanced FN binding within the pH range (3 to 10) studied. A 4.6-kbp fragment from an M. avium subsp. paratuberculosis genomic library was found to contain a 1,107-bp open reading frame that shows very high nucleotide sequence identity with that of the FN attachment protein (FAP) gene of M. avium subsp. avium. Pretreatment of FN with an FN-binding peptide from M. avium subsp. avium FAP abolished FN binding, indicating that M. avium subsp. paratuberculosis binds FN in a FAP-dependent manner. Pretreatment of M. avium subsp. paratuberculosis with anti-FAP immunoglobulin G did not abrogate FN binding; blocking occurred only when anti-FAP was added together with FN. FAP was detected by immunofluorescence only in lipid-extracted M. avium subsp. paratuberculosis. Western blotting and immunoelectron microscopy revealed that FAP is located near the interior of the cell envelope of M. avium subsp. paratuberculosis. The results indicate that a FAP homologue mediates the attachment of FN to M. avium subsp. paratuberculosis. Further, given the subcellular location of FAP, it is considered that this protein operates at the terminus of a coordinated FN binding system in the cell envelope of M. avium subsp. paratuberculosis.
Descriptors: Mycobacterium avium ssp. paratuberculosis binding proteins, bacterial proteins, nucleotide sequences, genes, molecular sequence data.

Sergeant, E. S. G. Ovine Johne's disease in Australia: The first 20 years. Australian Veterinary Journal. July, 2001; 79 (7): 484-491. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: sheep, historical review of the disease in Australia, introduction information dates, movement of the disease, economic impact, control, diagnostic techniques, surveillance strategies, distribution and prevalence.

Spahr, U.; Schafroth, K. Fate of Mycobacterium avium subsp. paratuberculosis in Swiss hard and semihard cheese manufactured from raw milk. Applied and Environmental Microbiology. September, 2001; 67 (9): 4199-4205. ISSN: 0099-2240
NAL Call No.: 448.3 Ap5
Descriptors: experimentally contaminated cheese; declumped cells; Swiss Emmentaler; semihard Swiss Tisliter; bacterial cell survival; 7H10-PANTA agar plating media; factors affecting ripening were temperature, low pH, and time of 90-120 days.

Stabel, J. R.; Whitlock, R. H. An evaluation of a modified interferon-gamma assay for the detection of paratuberculosis in dairy herds. Veterinary Immunology and Immunopathology. 10 May, 2001; 79 (1-2): 69-81. ISSN: 0165-2427
NAL Call No.: SF757.2.V38
Descriptors: dairy cattle, blood sampling, Pennsylvania, Wisconsin, infected herds, Johne’s disease, fecal culture, concanavalin A (ConA), IFN gamma, commercial ELISA antibody test, test accuracy, subclinical infection, useful for culling decisions.

Stabel, Judith R.; Harp, James A.; Pesch, Bruce. Infection with Mycobacterium avium subsp. paratuberculosis on immune cell phenotype. FASEB Journal. March 7, 2001; 15 (4): A309. ISSN: 0892-6638 Note: Annual Meeting of the Federation of American Societies for Experimental Biology on Experimental Biology 2001, Orlando, Florida, USA, March 31-April 04, 2001
NAL Call No.: QH301.F3
Descriptors: paratuberculosis, Johne's disease, ruminant bacterial disease, gammadelta-TCR subset of T cells, role in containing the infection, subclinically infected cows, brogation of gammadelta-TCR T cell response may be responsible for the shift between subclinical and clinical disease states for paratuberculosis.

Stabel, Judith; Waldren, Charles; Garry, Frank. Ionizing radiation effectively destroys Mycobacterium paratuberculosis in milk. Journal of Dairy Science. 2001; 84 (Supplement 1): 27. ISSN: 0022-0302 Note: Joint Meeting of the American Diary Science Association, American Meat Science Association, American Society of Animal Science and the Poultry Science Association, Indianapolis, Indiana, USA, July 24-28, 2001
Journal URL: http://www.ADSA.org/jds
NAL Call No.: SF221 A4
Descriptors: milk, sterilization with ionizing radiation, Mycobacterium avium ssp. paratuberculosis, public health, disease control.

Stabel, J.R. On-farm batch pasteurization destroys Mycobacterium paratuberculosis in waste milk. J Dairy Sci. Savoy, Ill. : American Dairy Science Association. Feb 2001. v. 84 (2) p. 524-527. ISSN: 0022-0302
NAL Call No.: 44.8 J822
Abstract: A recent dairy survey conducted in 1996 by the National Animal Health Monitoring System suggests between 20 and 40% of dairy herds in the United States have some level of Johne's disease. This figure will continue to increase unless producers implement management regimes that will help control the spread of this disease within their herds. The neonatal calf is the target for infection with Mycobacterium paratuberculosis, the causative agent of Johne's disease. Calves become infected via exposure to the bacterium through contaminated feces, bedding, colostrum, and milk. Shedding of viable M. paratuberculosis has been documented in the colostrum and milk of infected dams. This study evaluated the efficacy of on-farm pasteurization to destroy M. paratuberculosis in waste milk fed to calves to circumvent this mode of transmission. In three replicate experiments, waste milk was experimentally inoculated with M. paratuberculosis and heated at 65.5 degrees C for 30 min. No viable bacteria were recovered after 28 wk of incubation. These results suggest that batch pasteurization of waste milk contaminated with M. paratuberculosis was effective at generating a clean product to feed to young calves.
Descriptors: calves, calf feeding, disease survey, pasteurization, efficacy of on-farm pasteurization of waste milk, Mycobacterium avium ssp paratuberculosis, bacterial count, milk quality, disease control, Johne's disease, US.

Stabel, J. On-farm batch pasteurization destroys Mycobacterium paratuberculosis in waste milk. Journal of Dairy Science. 2001; 84 (Supplement 1): 187. ISSN: 0022-0302 Note: Joint Meeting of the American Diary Science Association, American Meat Science Association, American Society of Animal Science and the Poultry Science Association, Indianapolis, Indiana, USA, July 24-28, 2001
Journal URL: http://www.ADSA.org/jds
NAL Call No.: SF221 A4
Descriptors: Johne’s disease, on the farm disease prevention and control, sanitation, dairy cattle, Mycobacterium avium ssp. paratuberculosis.

Storset, A. K.; Hasvold, H. J.; Valheim, M.; Brun, Hansen H.; Berntsen, G.; Whist, S. K.; Djonne, B.; Press, C. McL.; Holstad, G.; Larsen, H. J. S. Subclinical paratuberculosis in goats following experimental infection: An immunological and microbiological study. Veterinary Immunology and Immunopathology. 10 August, 2001; 80 (3-4): 271-287. ISSN: 0165-2427
NAL Call No.: SF757.2.V38
Descriptors: goats, experimental infection of kids, caprine isolate, Mycobacterium avium ssp. paratuberculosis, bacterial suspension in milk-replacement, cellular responses monitored, lesions, pathology.

Strommenger, Birgit; Stevenson, Karen; Gerlach, Gerald F. Isolation and diagnostic potential of ISMav2, a novel insertion sequence-like element from Mycobacterium avium subspecies paratuberculosis. FEMS Microbiology Letters. 1 March, 2001; 196 (1): 31-37. ISSN: 0378-1097
NAL Call No.: QR1.F44
Descriptors: mycobacterial IS elements, ISMav2, 50% identity to a non-composite transposon of Streptomyces coelicolor at the DNA and protein level, potential diagnostic tool.

Tessema, M. Z.; Koets, A. P.; Rutten, V. P. M. G.; Gruys, E. How does Mycobacterium avium subsp. paratuberculosis resist intracellular degradation? Veterinary Quarterly. November, 2001; 23 (4): 153-162. ISSN: 0165-2176
NAL Call No.: SF601 V46
Descriptors: microbial resistance, thick, lipid-rich cell envelope, 3 level survival strategies, safe entry, intracellular trafficking of mycobacteria-containing phagosomes, modulation of the immune process, implications, epidemiology, diagnosis, control.

Thomsen, B. V.; Steadham, E. M.; Gallup, J. M.; Ackermann, M. R.; Brees, D. J.; Cheville, N. F. T cell-dependent inducible nitric oxide synthase production and ultrastructural morphology in BALB/c mice infected with Mycobacterium avium subspecies paratuberculosis. Journal of Comparative Pathology. August-October, 2001; 125 (2-3): 137-144. ISSN: 0021-9975
NAL Call No.: 41.8 J82
Descriptors: euthymic BALB/c mice, athymic nude BALB/c mice, intraperitoneal injection, Mycobacterium avium subspecies paratuberculosis (ATCC strain 19698), hepatic granuloma evaluation, morphometric analysis of digital images, light microscopy sections, electron microscopy, immunohistochemical methods, responses compared.

Veerabadran, D. Cloning and characterization of the genes coding for antigen 85A, 85B and 85C of Mycobacterium avium subsp. paratuberculosis. Abstracts of the General Meeting of the American Society for Microbiology. 2001; 101: 740. ISSN: 1060-2011 Note: 101st General Meeting of the American Society for Microbiology, Orlando, FL, USA, May 20-24, 2001
NAL Call No.: QR1.A5
Descriptors: Mycobacterium avium ssp. paratuberculosis, antigen 85-A, B, & C genes, homology with other species.

Vidic, Branka; Grgic, Z.; Bjelajac, B.; Trkulja, R. Ispitivanje rasprostranjenosti paratuberkuloze kod goveda i ovaca. [Investigations of spread of paratuberculosis in cattle and sheep. ] Veterinarski Glasnik. 2001; 55 (1-2): 9-16. ISSN: 0350-2457 Note: In Serbian with English, Serbian and Russian summaries.
NAL Call No.: 41.8 J93
Descriptors: cattle, sheep, epidemiology, serum sampling, AGID and CBR diagnostic tests, antibody titers, Mycobacterium paratuberculosis, survey, Backa.

Weber, M. F.; Verhoeff, J. Integrale dierziektebestrijding op melkveebedrijven: Visie van rundveedierenartsen op een casus. [Integrated disease control in dairy herds: A case study from the veterinarians' viewpoint. ] Tijdschrift voor Diergeneeskunde. 15 Mei, 2001; 126 (10): 340-345. ISSN: 0040-7453 Note: In Dutch with summaries in English and Netherlandish.
NAL Call No.: 41.8 T431
Descriptors: control of intestinal diseases, dairy cattle, bovine virus diarrhoea virus, bovine herpesvirus-1, Leptospira interrogans serovar hardjo subtype hardjobovis, Mycobacterium avium ssp. paratuberculosis, Salmonella Dublin, sequential ranking for disease control, voluntary culling infected cattle, Netherlands.

Weiss, Douglas J.; Evanson, Oral A.; McClenahan, David J.; Abrahamsen, Mitchell S.; Walcheck, Bruce K. Regulation of expression of major histocompatibility antigens by bovine macrophages infected with Mycobacterium avium subsp. paratuberculosis or Mycobacterium avium subsp. avium. Infection and Immunity. February, 2001; 69 (2): 1002-1008. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: cattle, bovine macrophages, histocompatibility complex (MHC) class I and class II antigens on their surface and interaction with primed autologous lymphocytes, changes over 24 and 12 hours, differences in virulence, suppression of mycobacteria antigen presentation to T lymphocytes.

Whan, L. B.; Grant, I. R.; Ball, H. J.; Scott, R.; Rowe, M. T. Bactericidal effect of chlorine on Mycobacterium paratuberculosis in drinking water. Letters in Applied Microbiology. September, 2001; 33 (3): 227-231. ISSN: 0266-8254
NAL Call No.: QR1.L47
Descriptors: transmission, contaminated drinking water, effects of standard water treatment processes, strains MAP NCTC 8578, human strain Linda, ATCC 43015, chlorine treatments, effects of level of populations and time of exposure.

Whittington, R. J.; Taragel, C. A.; Ottaway, S.; Marsh, I.; Seaman, J.; Fridriksdottir, V. Molecular epidemiological confirmation and circumstances of occurrence of sheep (S) strains of Mycobacterium avium subsp. paratuberculosis in cases of paratuberculosis in cattle in Australia and sheep and cattle in Iceland. Veterinary Microbiology. 19 April, 2001; 79 (4): 311-322. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: polymorphism in IS1311, sheep and cattle strains of bacteria, history of strain introductions, effects of different husbandry practices, Australia, Iceland, imported animals, survey of imported animals.

Whittington, R. J.; Sergeant, E. S. G. Progress towards understanding the spread, detection and control of Mycobacterium avium subsp paratuberculosis in animal populations. Australian Veterinary Journal. April, 2001; 79 (4): 267-278. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: pathogenesis, epidemiology, information review, aspects of the disease, infection, transmission, incubation period, detection.

Whittington, R.J.; Lloyd, J.B.; Reddacliff, L.A. Recovery of Mycobacterium avium subsp. paratuberculosis from nematode larvae cultured from the faeces of sheep with Johne's disease. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Aug 8, 2001. v. 81 (3) p. 273-279. ISSN: 0378-1135
NAL Call No.: SF601.V44
Abstract: A study was conducted to determine whether trichostrongylid nematode larvae become contaminated with Mycobacterium avium subsp. paratuberculosis when they develop in the faeces of sheep with Johne's disease. Nematode larvae were hatched from ova in the faecal samples of affected sheep. Larval sheaths were removed and these as well as exsheathed larvae were subjected to radiometric culture for M. paratuberculosis. The organism was recovered from washing water used to prepare the larvae, third stage larvae and larval sheaths, but not from exsheathed larvae. The recovery of M. paratuberculosis from larvae was associated with the severity of the histological lesions in affected sheep and with the results of culture of the organism from intestinal tissues and faeces. Nematode parasites of sheep might be able to act as mechanical vectors for M. paratuberculosis as the organism associates with infective third stage larvae when these develop in the faeces of sheep with Johne's disease.
Descriptors: sheep, Johne's disease, Mycobacterium avum ssp. paratuberculosis, nematode larvae, intestinal tissue and feces, Trichostrongylidae, contamination, ova, histology, disease vectors, infectivity.

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2000

Allworth, M.B.; Kennedy, D.J. Progress in national control and assurance programs for ovine Johne's disease in Australia. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 415-422. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: Since the detection of ovine Johne's disease in Australia in 1980, 578 flocks have been diagnosed as infected, with 442 of these still infected. The disease was initially believed to be confined to the central tablelands area of NSW, but has subsequently been shown to be more widely distributed. Sheep strains of M. paratuberculosis are known to infect sheep and goats in south-eastern Australia. Although sheep strains have recently been identified in some cattle in Australia, epidemiological evidence to date supports the distinction between ovine Johne's disease, caused by sheep strains in sheep and goats, and bovine Johne's disease, caused by cattle strains in cattle, goats and alpaca, as a basis for control and eradication strategies. Four national initiatives to control and better understand OJD are outlined. The Australian Johne's Disease Market Assurance Program for sheep was launched in May 1997. By December 1998, 548 flocks had achieved an assessed negative status. Three flocks assigned a flock status have subsequently been found to be infected. National standards for State control of Johne's disease through zoning, movement controls and procedures in infected and suspect flocks have also been developed. In addition, a $40.1 m National Ovine Johne's Disease Control and Evaluation Program was agreed to in August 1998, and is currently being implemented. It is jointly funded by National and State industries, and Commonwealth and State governments. Its objectives are to deliver, through research and surveillance, a solid basis for a future decision on the most appropriate course for dealing with OJD and to maintain control of OJD nationally.
Descriptors: sheep, Mycobacterium avium ssp paratuberculosis, Johne's disease control, detection,flock health, disease strains,geographical distribution, epidemiology, goats, cattle, disease prevalence, surveillance, Australia.

Bakker, D.; Willemsen, P. T. J.; van Zijderveld, F. G. Paratuberculosis recognized as a problem at last: A review. Veterinary Quarterly. October, 2000; 22 (4): 200-204. ISSN: 0165-2176.
NAL Call No.: SF601 V46
Descriptors: current opinions, Johne's disease, Mycobacterium avium ssp. paratuberculosis, incidence of disease, cattle and sheep, role in etiology of Crohn's, issue of diagnostic tools, current status, control programs.

Bannantine, John P.; Stabel, Judith R. HspX is present within Mycobacterium paratuberculosis-infected macrophages and is recognized by sera from some infected cattle. Veterinary Microbiology. 20 October, 2000; 76 (4): 343-358. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: cattle, rabbit antisera against recombinant protein of HspX fused to the Escherichia coli maltose binding protein (MBP/HspX), infected murine and bovine macrophages, sera testing.

Bannantine, J. P.; Stabel, J. R. Identification of two M. paratuberculosis gene products differentially recognized by sera from rabbits immunized with live mycobacteria but not sera raised against heat-killed mycobacteria. Abstracts of the General Meeting of the American Society for Microbiology. 2000; 100: 648. ISSN: 1060-2011 Note: 100th General Meeting of the American Society for Microbiology, Los Angeles, California, USA, May 21-25, 2000
NAL Call No.: QR1.A5

Descrioptors: bacterial molecular genetics, gene products, heat killed and live bacteria, rabbits,

Corynebacterium glutamicum protein, Mycobacterium paratuberculosis, genomic expression library of bacterial induced proteins, paratuberculosis antigens, polyketide synthase.

Beard, P. M.; Henderson, D.; Daniels, M.; Pirie, A.; Buxton, D.; Greig, A.; Hutchings, M. R.; McKendrick, I.; Rhind, S.; Stevenson, K.; Sharp, J. M. Wildlife reservoirs of paratuberculosis. Research in Veterinary Science. June, 2000; 68 (Supplement A): 2. ISSN: 0034-5288 Note: 54th Annual Conference of the Association of Veterinary Teachers and Research Workers on Current Topics in Veterinary Science, Scarborough, England, April 17-19, 2000.
NAL Call No.: 41.8 R312
Descriptors: Mycobacterium avium ssp.paratuberculosis, pathogen vectors, ruminants, Johne’s disease.

Beard, P.M.; Rhind, S.M.; Sinclair, M.C.; Wildblood, L.A.; Stevenson, K.; Mckendrick, I.J.; Sharp, J.M.; Jones, D.G. Modulation of gammadelta T cells and CD1 in Mycobacterium avium subsp. paratuberculosis infection. Vet Immunol Immunopathol. Amsterdam : Elsevier. Dec 29, 2000. v. 77 (3/4) p. 311-319. ISSN: 0165-2427
NAL Call No.:SF757.2.V38
Abstract:: M.a. paratuberculosis is the causal agent of paratuberculosis (Johne's disease). Recent work has suggested that gammadelta T cells may play an important role in the early immunological response to mycobacterial diseases, and that CD1 may act as a non-classical MHC molecule in antigen presentation to these gammadelta T cells. Experimental infection of neonatal lambs with M.a. paratuberculosis was used to investigate the changes in gammadelta T cells and CD1 molecules in the gut associated lymphoid tissue 4 weeks after inoculation. Immunohistochemistry was used to label the gammadelta lymphocytes and CD1 molecules. An increase in the number of gammadelta T cells was noted in both the jejunal and ileal Peyer's patches in the gut of infected lambs, but no statistically significant change was found in the mesenteric lymph nodes. There were no obvious changes in the CD1 molecules in any tissue. This work suggests that gammadelta T cells may play a role in the initial immunological events of paratuberculosis infection.
Descriptors: Mycobacterium avium ssp paratuberculosis, gammadelta T-lymphocytes, CD1molecules, lambs, experimental infections, jejunum, ileum, Peyer patches, lymph nodes.

Benedictus, G.; Verhoeff, J.; Schukken, Y.H.; Hesselink, J.W. Dutch paratuberculosis programme history, principles and development. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 399-413. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: Organised disease control started in the Netherlands in the 18th century with governmental attempts to eradicate cattle plague. At the beginning of the 20th century, the dairy industry and cattle breeding organisations initiated a programme to control infectious diseases by means of a complex system of rewards and penalties. This was also the reason for establishing the Animal Health Service in Friesland in 1919. The history of programmes to control paratuberculosis in sheep, goats, and cattle in various countries is described. The vaccination of young animals seems to be an effective measure in the prevention of clinical paratuberculosis, although changes in management and hygiene practices are also important. A control programme for infectious cattle diseases has a number of phases (a lifecycle) and different components. Two components are essential for success, namely: open and regular communication with farmers, veterinary practitioners, and other people involved and a good registration and identification system for cattle, herds, and veterinary practitioners. The Dutch paratuberculosis programme has 10 herd status levels: 5-10 for non-suspect herds and 1-4 for infected herds or herds of unknown status. The higher the status, the greater the chance that a herd is free of paratuberculosis. An outline is given of the Dutch paratuberculosis programme including its objectives, basis principles for eradication, communication plan, legal action, logistic considerations, and complementary research programme.
Descriptors: dairy cattle, Mycobacterium avium ssp paratuberculosis, history, disease control, government policy, vaccination, disease prevention, hygiene, animal husbandry, life cycle, infections, Netherlands.

Bergeron, N.; Pare, J.; Fecteau, G. Le diagnostic de la paratuberculose chez les bovins. [Diagnosis of bovine paratuberculosis. ] Medecin Veterinaire du Quebec. 2000; 30 (4): 215-219. ISSN: 0225-9591 Note: In French with English and French summaries.
NAL Call No.: SF602.M8
Descriptors: Johne’s, brief review of the disease in cattle, diagnostic methods.

Boelaert, F.; Walravens, K.; Biront, P.; Vermeersch, J.P.; Berkvens, D.; Godfroid, J. Prevalence of paratuberculosis (Johne's disease) in the Belgian cattle population. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 269-281. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract: The national bovine paratuberculosis (PTB) seroprevalence (apparent prevalence) in the Belgian cattle population was determined by a serological survey that was conducted from December 1997 to March 1998. In a random sample of herds (N = 556, 9.5%), all adult cattle of 24 months of age or older (N = 13,317, 0.4%) were tested for the presence of antibodies using a commercially available absorbed ELISA test kit. The PTB median within-herd seroprevalence (proportion of detected animals within the seropositive herds) and the PTB individual-animal seroprevalence (proportion of detected animals) were, respectively, 2.9% (quartiles = 1.6-5.6) and 0.87% (95% confidence interval (CI) = 0.71-1.03). The PTB herd seroprevalence (proportion of detected herds) was 18% (95% CI = 14-21). Assuming a test sensitivity and specificity of 45 and 99% [Sweeney et al., 1995. J. Vet. Diagn. Invest. 7 (4), 488; Sockett et al., 1992. J. Clin. Microbiol. 30 (5), 1134], respectively, the median true within-herd prevalence and the true individual-animal were estimated to be 7 and 2%, respectively. The true herd prevalence of Mycobacterium paratuberculosis infection was first estimated according to currently accepted methodology. This calculation revealed that the specificity of the used test has a dramatic effect on the estimation; assuming a test sensitivity of 45% and a true within-herd prevalence of 7%, the true herd prevalence estimation decreased from 36 to 0.8% if the test specificity decreased from 99.9 to 99%, respectively. This sensitivity analysis showed that the practical limits of the accuracy of the used screening test jeopardize the estimation of the true herd prevalence within reasonable confidence limits, because the within-herd PTB true prevalence was low. For this reason we augmented the herd specificity for herds with larger adult herd size (>5). This was done by increasing the cut-off number of positive cattle required (greater than or equal to 2) to classify a herd truly positive and including herds with one positive test result if there was historical evidence of PTB (previous diagnosis and/or clinical signs). This approach resulted in an estimated true herd prevalence of M. paratuberculosis infection of 6%. The true herd prevalence for dairy, mixed and beef herds was, respectively, 10, 11 and 3%.
Descriptors: cattle, paratuberculosis, disease prevalence, Mycobacterium avium ssp paratuberculosis, seroprevalence, serological surveys, herd health status, estimation, screening, livestock numbers, statistical analysis, Belgium.

Brumbaugh, G. W.; Edwards, J. F.; Roussel, A. J. Jr.; Thomson, T. D. Effect of monensin sodium on histological lesions of naturally occurring bovine paratuberculosis. Journal of Comparative Pathology. July, 2000; 123 (1): 22-28. ISSN: 0021-9975
NAL Call No.: 41.8 J82
Descriptors: cattle, efficacy of drug treatment, drug delivery in feed, pre- and post-lesion severity, 147.5 mg/kg, and each treated cow received 450 mg of monensin daily for 120 days, post mortem examination, positive effects on ileum, liver, rectal mucosa, no effect seen on mesenteric lymph node.

Buergelt, C.D.; Ginn, P.E. The histopathologic diagnosis of subclinical Johne's disease in North American Bison (Bison bison). Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 325-331. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: The morphologic changes of subclinical Johne's disease in North American Bison (Bison bison) are characterized by microgranulomas composed of epithelioid macrophages and individual multinucleate giant cells of Langhans'-type occasionally containing individual cytoplasmic acid-fast bacilli compatible with Mycobacterium avium paratuberculosis. The microgranulomas are best visualized in the mesenteric lymph nodes of infected subclinical animals. Macrophages that can be confused with infection-associated epithelioid macrophages in the mesenteric lymph nodes are pigment-carrying cells from the intestinal tract. Mesenteric lymph node biopsy may be a useful diagnostic tool for detection of mild subclinical infection in individual ruminants from herds of unknown infection status. The biopsy may also be useful for Johne's disease surveillance during test-and-cull programs.
Descriptors: Bison bison, Mycobacterium avium ssp paratuberculosis, histopathology, diagnosis, cytoplasm, giant cells, macrophages, lymph nodes, clinical aspects, biopsy, diagnostic techniques, test and cull programs, North America.

Bull, Tim J.; Hermon, Taylor John; Pavlik, Ivo; El Zaatari, Fouad; Tizard, Mark. Characterization of IS900 loci in Mycobacterium avium subsp. paratuberculosis and development of multiplex PCR typing. Microbiology Reading. September, 2000; 146 (9): 2185-2197. ISSN: 1350-0872
NAL Call No.: QR1.J64
Descriptors: genomic DNA flanking IS900 insertions characterized, homologues identified, Mycobacterium tuberculosis and M. avium subsp. avium genomes, sigma factor (sigJ) at locus 3, a nitrate reductase (nirA) at locus 4, a transcription regulator (tetR) and polyketide synthase at locus 6, and a 6-O-methylguanine methyltransferase at locus 9, DesA1 protein, isolates comparison, possible technique for identification.
Nucleotide sequence information: AJ011838-: GenBank-, nucleotide-sequence; AJ250015-: GenBank-, nucleotide-sequence; AJ250016-: GenBank-, nucleotide-sequence; AJ250017-: GenBank-, nucleotide-sequence; AJ250018-: GenBank-, nucleotide-sequence; AJ250019-: G enBank-, nucleotide-sequence; AJ250020-: GenBank-, nucleotide-sequence; AJ250021-: GenBank-, nucleotide-sequence; AJ250022-: GenBank-, nucleotide-sequence; AJ250023-: GenBank-, nucleotide-sequence; AJ251434-: GenBank-, nucleotide-sequence; AJ251435-: GenB ank-, nucleotide-sequence; AJ251436-: GenBank-, nucleotide-sequence; AJ251437-: GenBank-, nucleotide-sequence.

Bull, T.J.; Sheridan, J.M.; Martin, H.; Sumar, N.; Tizard, M.; Hermon-Taylor, J. Further studies on the GS element a novel mycobacterial insertion sequence (IS1612), inserted into an acetylase gene (mpa) in Mycobacterium avium subsp. silvaticum but not in Mycobacterium avium subsp. paratuberculosis. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 453-463. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: We have recently described the GS element, found in Mycobacterium avium subsp. paratuberculosis (MAP), Mycobacterium avium subsp. silvaticum (MAS) and some isolates of Mycobacterium avium subsp. avium serotype 2 (MAAs2), which contains a set of genes of low GC% content, putatively associated with the biosynthesis, modification and transference of fucose to cell wall glycopeptidolipids. Here we describe a further gene of low GC% content (mpa), within the GS element in MAP. mpa is a putative acetyltransferase with homology to genes directly responsible for host specificity and virulence in Salmonella typhimurium and Shigella flexneri. Unlike other GS genes, strong homologues of mpa have not been found in related species, including Mycobacterium tuberculosis (MTB). In MAP, mpa encodes an ORF of 445aa, however, in MAS and MAAs2 mpa contains a single inserted copy of a novel insertion sequence. This element (IS1612) has two sets of inverted repeats at each terminus and encodes two ORFs with good homologies to transposase and helper proteins of IS21 (E. coli) and IS1415 (R. erythropolis). Sequence comparisons between mpa in MAP and MAS indicate the target site for IS1612 is duplicated on insertion to give a direct repeat at each end of the element. Immediately, downstream of the mpa gene in both MAP and MAS are a group of three genes with good homology to the daunorubicin resistance cluster. This cluster has a high GC% content which suggests a 'border' for the GS element. A short motif present at the beginning of this cluster matches with an inverted repeat of this motif at the beginning of the first gene in the GS element. This encapsulates the whole of this group of low GC% genes in MAP and further suggests its cassette-like nature. Homologues of the GS element in MTB show a marked similarity of organisation, suggesting a parallel role for these genes in both pathogens.
Descriptors: Mycobacterium avium subsp. paratuberculosis serotype 2, Mycobacterium avium ssp silvaticum, nucleotide sequences, genes, transposable elements, serotypes, cell wall components, fucose, host range, virulence, molecular sequence data.

Cann, Paul Adrian; Bramble, Michael Graham. An open pilot study of antimicrobial agents in the management of resistant Crohn's Disease. Gastroenterology. April, 2000; 118 (4 Suppl. 2 Part 2): AGA A1335. ISSN: 0016-5085 Note: 101st Annual Meeting of the American Gastroenterological Association and the Digestive Disease Week., San Diego, California, USA, May 21-24, 2000
NAL Call No.: RC799.G37
Descriptors: Mycobacterium paratuberculosis, humans, antibiotic drug treatment, clarithromycin, clofazamine, rifabutin, Crohn’s disease.

Cavaignac, Sonia M.; White, Stefan J.; de Lisle, Geoffrey W.; Collins, Desmond M. Construction and screening of Mycobacterium paratuberculosis insertional mutant libraries. Archives of Microbiology. March, 2000; 173 (3): 229-231. ISSN: 0302-8933
NAL Call No.: 442.8 AR26
Descriptors: Johne's disease, virulence mechanisms, libraries of random mutants produced in two M. paratuberculosis strains, conditionally replicating shuttle phasmid phAE94 with transposon Tn5367, 2000 mutants screened, auxotrophy, carbon source preference, altered cell wall, interrupted genes.

Cerf, O.; Griffiths, M. W.; Grant, I. Mycobacterium paratuberculosis heat resistance and reply. Letters in Applied Microbiology. April, 2000; 30 (4): 341-344. ISSN: 0266-8254
NAL Call No.: QR1.L47
Descriptors: letter regarding previously published information, heat resistance of pathogen, bacterial characteristics.

Coetsier, Christophe; Vannuffel, Pascal; Blondeel, Nathalie; Denef, Jean Francois; Cocito, Carlo; Gala, Jean Luc. Duplex PCR for differential identification of Mycobacterium bovis, M. avium, and M. avium subsp. paratuberculosis in formalin-fixed paraffin-embedded tissues from cattle. Journal of Clinical Microbiology. August, 2000; 38 (8): 3048-3054. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: DNA based assay, cattle tissues, assessment of molecular assay, conventional bacteriological and histological test, Ziehl-Neelsen staining, p34 and f57 sequence amplification for differential diagnosis of tuberculosis, duplex paratuberculosis, or infections caused by other members of the M. avium complex.

Corpa, J. M.; Garrido, J.; Marin, J. F. Garcia.; Perez, V. Classification of lesions observed in natural cases of paratuberculosis in goats. Journal of Comparative Pathology. May, 2000; 122 (4): 255-265. ISSN: 0021-9975
NAL Call No.: 41.8 J82
Descriptors: 68 goats, clinical or sub-clinical paratuberculosis, post mortem pathological examination, intestinal lymphoid tissue, granulomata in the ileocaecal Peyer's patches or related lamina propria, diffuse multibacillary lesions, granulomatous enteritis of different intestinal sites, macroscopical changes in the normal gut morphology, changes in lymphocyes and macrophages.

Corpa, J.M.; Perez, V.; Garcia-Marin, J.F. Differences in the immune responses in lambs and kids vaccinated against paratuberculosis, according to the age of vaccination. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 475-485. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract: In order to evaluate and compare the peripheral immune responses induced by the vaccination against paratuberculosis in relation with the age of immunization, two groups of lambs and goat kids were vaccinated at 15 days and 5 months old, respectively. A heat-killed commercial vaccine was inoculated subcutaneously and humoral and cellular immune responses were measured by an ELISA and IFN-gamma assay, respectively, at 0, 30, 90, 180, 270 and 360 dpv in the lambs and 0, 30, 90 and 180 dpv in the caprine. IFN-gamma values did not show statistically significant differences between both groups, but when compared to the unvaccinated controls, this cytokine response tend to disappear earlier in animals vaccinated at 15 days old. The antibody response was always higher and more persistent in animals vaccinated at 5 months. The possibility of the incomplete degree of maturation of the immune system in 15 days old animals as the cause of the differences in the immune response to vaccination is suggested.
Descriptors: lambs, goat kids, paratuberculosis, vaccination, age differences, species differences, evaluation, vaccines, interferon, ELISA, cytokines, antibodies.

Cousins, D. V.; Williams, S. N.; Hope, A.; Eamens, G. J. DNA fingerprinting of Australian isolates of Mycobacterium avium subsp paratuberculosis using IS900 RFLP. Australian Veterinary Journal. March, 2000; 78 (3): 184-190. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: cattle; sheep; alpacas; a rhinoceros; evaluate additional restriction enzymes; IS900 RFLP; examine the genetic diversity; 71 Australian isolates; epidemiology; Johne's disease; restrictions enzymes: Bst EII, Pvu II and Pst I, Bam Hl, Alu I, Xho I and Dra I; detection of polymorphisms; cattle and sheep strains distribution; Australia.

Cousins, D. V.; Whittington, R.; Marsh, I.; Masters, A.; Evans, R. J.; Kluver, P. Mycobacteria distinct from Mycobacterium avium subsp. paratuberculosis isolated from the faeces of ruminants possess IS900-like sequences detectable by IS900 polymerase chain reaction: Implications for diagnosis. Molecular and Cellular Probes. Dec., 2000; 13 (6): 431-442. ISSN: 0890-8508
NAL Call No.: RB43.7.M63
Descriptors: feces, diagnosis of Johne’s disease, IS900 PCR, 16 S rRNA, recommend the adoption of restriction endonuclease analysis of IS900 PCR product false positives.

Daniels, M. J.; Hutchings, M. R.; Henderson, D. Quantifying rabbit faecal contamination on livestock grazing pasture and the input of M. a. paratuberculosis. Research in Veterinary Science. June, 2000; 68 (Supplement A): 2. ISSN: 0034-5288 Note: 54th Annual Conference of the Association of Veterinary Teachers and Research Workers on Current Topics in Veterinary Science, Scarborough, England, April 17-19, 2000
NAL Call No.: 41.8 R312
Descriptors: fecal contamination, pastures, rabbit pellets, Oryctolagus cuniculus, possible disease, vector, Scotland.

Dimech, W. Automation of an absorbed enzyme immunoassay for the detection of Mycobacterium paratuberculosis antibodies for an eradication program. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 351-355. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract: As part of an ongoing Johne's disease eradication program by the state of Victoria, Australia, the Victorian Veterinary Pathology Services (VVPS) has been involved in testing over 150000 cattle samples per year for the presence of Johne's-specific antibodies. The Parachek kit (CSL, Victoria, Australia) has been used throughout the project. This method was automated using a Rosys 3300 and a Plato 7 (Dade/Behring Diagnostics) to pipette samples and the Behring ELISA Processor 3 (Dade/Behring Diagnostics) to wash EIA plates, add reagents, reads absorbances and perform data reduction of the results. Automation saved about 15 h of labour per day, allowing one staff member to analyse up to 2000 samples per 8 h shift compared to 800 samples using a manual protocol. Problems that were encountered include pipetting issues, the reading of the Paracheck endpoint, and excessive packaging of the kit. Maintenance, calibration and control of the analysers were an integral part of the process. VVPS, working in conjunction with CSL, suggested modification to the Parachek kit to make automation of the product more convenient. The approach resulted in a change in reagent volume and a reduction in packaging that reduced the cost of the test by 25%.
Descriptors: cattle, Mycobacterium avium paratuberculosis, enzyme immunoassay, antibody testing, disease control, automation, labor, evaluation, calibration, maintenance, Victoria, Australia.

Dinsmore, R. Page. Updates on Johne's Disease. Large Animal Practice. March-April, 2000; 21 (2): 20-25; 24. ISSN: 1092-7603
NAL Call No.: SF601 B6
Descriptors: Mycobacterium avium paratuberculosis, pathogenisisty, cattle disease, Crohn’s disease, status of diagnosis and control.

Eamens, G.J.; Whittington, R.J.; Marsh, I.B.; Turner, M.J.; Saunders, V.; Kemsley, P.D.; Rayward, D. Comparative sensitivity of various faecal culture methods and ELISA in dairy cattle herds with endemic Johne's disease. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 357-367. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: In three New South Wales dairy cattle herds with endemic Johne's disease, prevalence rates by faecal culture were determined to be 12, 18 and 22%, respectively. Whole herd faecal culture was shown to detect markedly more infected cattle than whole herd testing by the EMAI absorbed ELISA, particularly in the two herds with greatest prevalence. In the three study herds, five methods for whole herd faecal culture were compared in each. These included two methods based on primary culture on Herrold's egg yolk medium with mycobactin J (HEYM): (1) conventional decontamination with sedimentation and primary culture on HEYM; (2) Whitlock decontamination and culture on HEYM. The remaining three methods were based on radiometric (BACTEC) culture: (3) decontamination and filtration to BACTEC medium; (4) modified Whitlock decontamination to BACTEC medium and (5) Whitlock decontamination to BACTEC medium. For BACTEC cultures, two methods were compared as confirmatory tests for Mycobacterium paratuberculosis: mycobactin dependence on conventional subculture to HEYM and IS900 PCR analysis of radiometric media. Among 179 cattle tested simultaneously by all five culture methods, 38 cattle were confirmed to be shedding M. paratuberculosis. In identifying shedder cattle, method 5 was the most sensitive, followed by methods 2, 4, 1, and 3 was the least sensitive. The number of BACTEC cultures confirmed by mycobactin dependence or PCR was similar.
Descriptors: dairy cattle herds, endemic Johne's disease, paratuberculosis, fecal cell cultures, ELISA, diagnostic techniques, evaluation, disease prevalence, infections organism shedding, detection methods, New South Wales, Mycobacterium avium paratuberculosis, Australia

Ellingson, J. L. E.; Stabel, J. R.; Bishai, W. R.; Frothingham, R.; Miller, J. M. Evaluation of the accuracy and reproducibility of a practical PCR panel assay for rapid detection and differentiation of Mycobacterium avium subspecies. Molecular and Cellular Probes. June, 2000; 14 (3): 153-161. ISSN: 0890-8508
NAL Call No.: RB43.7.M63
Descriptors: possible diagnostic tool, specific oligonucleotides primers, 16 S rRNA (MAs) sequence, insertion elements IS901 (MAs avium), IS 1245 Mycobacterium avium complex (MAC), IS900 (MAs paratuberculosis), and the hspX (MAs paratuberculosis) gene sequences were synthesized and used in preassembled PCR reaction mixtures, easy to use method.

Eppleston, J.; Simpson, G.; O'Neill, S.; Thornberry, K.; Lugton, I.; Taylor, P.; Hall, D.G. Reported levels of sheep mortalities in flocks infected with ovine Johne's disease in New South Wales. Asian Australas J Anim Sci. Seoul, Korea : AAAP and Korean Society of Animal Nutrition. July 2000. v. 13 (suppl.) p. 247. ISSN: 1011-2367. Note: In the supplement: Animal production for a consuming world, vol. C / edited by G.M. Stone. Proceedings of the 9th Congress of the Asian-Australasian Association of Animal Production Societies and 23rd Biennial Conference of the Australian Society of Animal Production held July 3-7, 2000, Sydney, Australia.
NAL Call No.:SF55.A78A7
Descriptors: sheep disease, Johne's disease, mortality statistics, Australia.

Feola, R. P.; Czuprynski, C. J. Binding of bovine growth hormone to Mycobacterium avium ss paratuberculosis. Comparative Immunology Microbiology and Infectious Diseases. July, 2000; 23 (3): 153-162. ISSN: 0147-9571 Note: In English with English and French summaries.
NAL Call No.: QR180.C62
Descriptors: cultured bacterial cultures, addition of bGH (5 mug/ml) had inhibitory effect on growth of M. avium ss paratuberculosis in Middlebrook 7H9 broth, first report of a mammalian hormone binding to MAP.

Ferroglio, E.; Nebbia, P.; Robino, P.; Rossi, L.; Rosati, S. Mycobacterium paratuberculosis infection in two free-ranging Alpine ibex. Revue Scientifique et Technique Office International des Epizooties. December, 2000; 19 (3): 859-862. ISSN: 0253-1933 Note: In English with English; French; and Spanish summaries.
NAL Call No.: SF781.R4
Descriptors: Alpine ibex (Capra ibex), free ranging, disease incidence, PCR for insertion sequence IS900, post mortem examination, tested positive to Zielh-Nielsen stain.

Fridriksdottir, V.; Gunnarsson, E.; Sigurdarson, S.; Gudmundsdottir, K.B. Paratuberculosis in Iceland: epidemiology and control measures, past and present. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 263-267. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract: Paratuberculosis as well as the slow virus infections maedi/visna and jaagsiekte came to Iceland in 1933 when 20 sheep of the Karakul breed were imported from Halle, Germany. At least five of these sheep were subclinical carriers of paratuberculosis. Within 16 years paratuberculosis together with the other Karakul diseases (maedi/visna and jaagsiekte) almost ruined sheep farming, the main agricultural industry in Iceland. The first clinical case of paratuberculosis in sheep was confirmed in 1938, and in cattle in 1944. The first cattle cases of paratuberculosis appeared on farms where the disease had been prevalent in sheep for years. The virulence in cattle appeared to be considerably lower than in sheep. Extensive measures were used to control the spread of paratuberculosis in sheep. Hundreds of kilometres of fences were put up and used together with natural geographic borders to restrict the movement of sheep from infected areas. Serological and other immunological tests were also used to detect and dispose of infected individuals. These measures proved inadequate and the disease could not be eradicated. Culling and restocking of uninfected sheep in endemic areas eradicated maedi/visna and jaagsiekte but not paratuberculosis. Experiments showed that vaccination against paratuberculosis could reduce mortality in sheep by 94%. Vaccination of sheep in endemic areas has been compulsory in Iceland since 1966 and as a result losses have been reduced considerably. Today, serology is used to detect and control infection in cattle herds. Furthermore, serology is used to control vaccination of sheep and screen for infection in non-endemic areas. The complement fixation (CF) test for paratuberculosis has been used until now, but recently we have started comparing the CF test with the CSL absorbed ELISA test.
Descriptors: sheep, cattle, Mycobacteriumparatuberculosis, disease control, epidemiology, history of introduction, diagnosis, virulence, disease transmission, fences, culling, vaccination, mortality, screening, economic impact, complement fixation tests, Iceland.

Garrido, J.M.; Cortabarria, N.; Oguiza, J.A.; Aduriz, G.; Juste, R.A. Use of a PCR method on fecal samples for diagnosis of sheep paratuberculosis. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 379-386. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: The high sensitivity of PCR compared to the difficulties of fecal culture in sheep prompted the development of PCR protocols for detection of Mycobacterium avium subsp. paratuberculosis DNA in sheep feces. Although the PCR itself is well developed, and does not pose large technical problems, concentrating the bacteria from samples that may contain low numbers of bacilli using practical methods is still the main difficulty for the use of this technique. In this study, we describe an extraction protocol for the concentration and purification of M. avium subsp. paratuberculosis DNA from fecal samples and we compare it with other methods. The diagnostic performance of the freeze-boiling method was evaluated using a reference method [Vet. Rec. 134 (1994) 95] on fecal samples from a group of selected sheep from different flocks of known individual serological, pathological, and cultural paratuberculosis status. Using, as a reference, a combination of results in those conventional methods, the freeze-boiling PCR protocol showed a sensitivity of 94.1%, and a specificity of 92.3%.
Descriptors: sheep, Mycobacterium avium ssp paratuberculosis, polymerase chain reaction, fecal culture, DNA, concentration and purification diagnostic technique, comparison study, reference data from known animals, sample processing.

Gasteiner, J.; Awad-Masalmeh, M.; Baumgartner, W. Mycobacterium avium subsp. paratuberculosis infection in cattle in Austria, diagnosis with culture, PCR and ELISA. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 339-349. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract: Serum samples from healthy, infected (n = 11) and diseased (n = 2) cattle as well as positive (n = 17) and negative (n = 41) reference sera were tested for antibodies to Mycobacterium avium subsp. Paratuberculosis with two ELISA-methods (A-ELISA, Allied Monitors, Fayette, USA; H-ELISA, Institute of Microbiology and Animal Diseases, Veterinary University Hannover). Fecal samples of these animals were examined by PCR and culture. Also field serum samples found to be positive (n = 664) or inconclusive (n = 1589) by A-ELISA during a survey done on 11028 cattle of 2757 farms at different districts in Austria were retested with H-ELISA (Gasteiner et al., 1999). In both ELISA-methods total agreement between antibody detection and shedding of M. avium subsp. paratuberculosis (PCR, culture) in cases of diseased animals during the testing period was found. In subclinically infected animals H-ELISA showed a better correlation with the results of PCR and fecal culture. Reference serum samples of culturally negative cattle were negative in 98% by H-ELISA and in 82% by A-ELISA, and those of positive animals were positive in 59% by H-ELISA and in 82% by A-ELISA. The 664 A-ELISA positive field serum samples were positive in 20.5%, inconclusive in 32.5% and negative in 47% by H-ELISA. A-ELISA inconclusive sera gave positive reactions by H-ELISA in 5.2%, negative in 74.8% and inconclusive results in 20%. The highest prevalence of antibodies (7.9% by A- and 2.2% by H-ELISA) against M. avium subsp. paratuberculosis were found in cattle at the age of six and seven years. Seropositive animals were found at all tested ages. The A-ELISA gave two to three times more positive reactors than the H-ELISA. Also both, tests showed the highest prevalence of reagents among Holstein Friesian (6.2% by A-ELISA, 2.5% by H-ELISA) followed by other cattle breeds. Seropositive cattle were observed in all districts of Austria in 3.3-7.1% and in 0.5-1.8% of herds according to A- and H-ELISA, respectively.
Descriptors: cattle, Mycobacterium avium paratuberculosis, diagnostic techniques, ELISA, cell cultures, polymerase chain reaction, disease diagnosis evaluation, blood-serum, antibodies, infectious organism shedding, asymptomatic infections, cattle breed differences, disease prevalence, Austria.

Giese, S.B.; Ahrens, P. Detection of Mycobacterium avium subsp. paratuberculosis in milk from clinically affected cows by PCR and culture. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 291-297. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract: Milk and faeces samples from cows with clinical symptoms of paratuberculosis were examined for the presence of Mycobacterium avium subsp. paratuberculosis (M. paratuberculosis) by culture and PCR. M. paratuberculosis was cultivated in variable numbers from faeces or intestinal mucosa in eight of 11 animals. In milk from five cows (all faeces culture positive), we cultivated a few colonies of M. paratuberculosis (<100 CFU per ml). Milk samples from two cows were PCR positive (both animals were faeces culture positive, and one cow was milk culture positive). One cow was culture negative on intestinal mucosa, but culture positive in milk, and two cows were negative in culture and PCR from both faeces and milk. In conclusion, the presence of M. paratuberculosis could be detected in raw milk by PCR, but cultivation of milk was more sensitive.
Descriptors: cows,polymerase chain reaction, detection,milk,cell culture, feces, diagnostic techniques, symptoms, clinical aspects, intestinal mucosa, evaluation, Mycobacterium avium ssp paratuberculosis

Godfroid, J.; Boelaert, F.; Heier, A.; Clavareau, C.; Wellemans, V.; Desmecht, M.; Roels, S.; Walravens, K. First evidence of Johne's disease in farmed red deer (Cervus elaphus) in Belgium. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 283-290. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract:: In a deer farm, chronic diarrhoea was seen in a 4-year-old hind. This animal died in poor condition on the farm and Johne's disease was suspected. Ziehl-Neelsen staining of the faeces of this hind were positive for the presence of clumps of small acid-fast bacilli, but faecal cultures remained negative. Direct and indirect tests were performed on 24 hinds and stags (yearlings, 2- and 4-year-old animals). The indirect tests performed were serology (Mycobacterium paratuberculosis antibody ELISA, HerdChek, Idexx), comparative cervical skin test (CCT) and lymphoproliferation test (LT) using Mycobacterium bovis purified protein derivative (PPD) and Mycobacterium avium PPD as antigens. Three positive serological results, three positive CCT and eight positive LT were observed in hinds and stags older than 2 years. No positive serological results were observed in the yearling group, whereas some sensitisation was observed in the CCT as well as in the LT for the same group of animals. The degree of concordance between these indirect tests was poor. The three seropositive animals were slaughtered and subjected to post-mortem examination. Histopathology was performed on mesenteric lymph nodes and on the terminal ileum. Visual changes in some mesenteric lymph nodes were observed, no gross lesion was seen in the intestine. Although Ziehl-Neelsen staining yielded no positive results, a catarrhal focal necrotic enteritis associated with a granulomatous lymphadenitis compatible with Johne's disease was evidenced. The mycobacterial cultures on organ samples from slaughtered animals were positive after 2 months for M. avium subspecies paratuberculosis and negative for M. bovis and M. avium. This is the first description of Johne's disease in a deer farm in Belgium.
Descriptors: Cervus elaphus, farmed red deer, paratuberculosis, incidence, diarrhea,mortality, diagnosis,feces, diagnostic techniques, Mycobacterium bovis, Mycobacterium avium ssp paratuberculosis, Mycobacterium avium, antigens, symptoms, histopathology, lymph nodes, intestines, necrosis, Belgium.

Goswami, T. K.; Joardar, S. N.; Ram, G. C. Antigenic analysis of M. paratuberculosis strain TEPS by SDS-PAGE and two-dimensional immunoelectrophoresis. Indian Journal of Animal Sciences. August, 2000; 70 (8): 789-791. ISSN: 0367-8318
NAL Call No.: 41.8 IN22
Descriptors: 40 polypeptide fractions, SDS-PAGE, Coommassie brillian blue staining, Schiff staining.

Goswami, Tapas Kumar; Joardar, Siddhartha Narayan; Ram, Gulab Chandra; Banerjee, Rabin; Singh, Dhirendra Kumar. Association of Mycobacterium paratuberculosis in Crohn's disease and Johne's disease: A possible zoonotic threat. Current Science Bangalore. 25 October, 2000; 79 (8): 1076-1081. ISSN: 0011-3891
NAL Call No.: 475 SCI23
Descriptors: review, possible association between Johne’s and Crohn’s, isolation studies, experimental disease production, histopathological and immunological evidences, DNA sequence analysis, possible food borne disease.

Goswami, T. K.; Swamy, N.; Suchitra, S.; Joardar, S. N.; Ram, G. C. Electrophoretic behaviour of Mycobacterium paratuberculosis soluble protein antigens in rocket immuno-electrophoresis. Indian Veterinary Medical Journal. December, 2000; 24 (4): 285-287. ISSN: 0250-5266
Descriptors: immuno-electrophoretic behaviour, native antigens, M. paratuberculosis (strain TEPS), hyperimmune goat sera, rocket immuno-electrophoretic technique, 8 native precipitin peaks, qualitative and quantitative test, detection of antigenic proteins.

Goswami, T. K.; Joardar, S. N.; Ram, G. C. In-vitro and in-vivo detection of cross-reacting antigens of M. paratuberculosis and M. bovis. Journal of Applied Animal Research. June, 2000; 17 (2): 285-290. ISSN: 0971-2119 Note: In English with English and Sanskrit summaries.
NAL Call No.: SF55. I4J68
Descriptors: delayed type of hypersensitivity, ELISA, crossed immunoelectrophoretic (CIE) technique.

Grant, I.R.; Pope, C.M.; O'Riordan, L.M.; Ball, H.J.; Rowe, M.T. Improved detection of Mycobacterium avium subsp. paratuberculosis in milk by immunomagnetic PCR. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 369-378. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: The potential use of a novel immunomagnetic PCR (IMS-PCR) technique as a rapid method to screen milk samples for the presence of Mycobacterium avium subsp. paratuberculosis (M. ptb) was assessed. Immunomagnetic separation (IMS) for M. ptb, developed at Queen's University, Belfast, was applied to milk samples prior to IS900 PCR in order to selectively concentrate any M. ptb cells present and, at the same time, separate the cells from constituents of milk likely to inhibit subsequent PCR. This increased the sensitivity of IS900 PCR. IMS-PCR sensitivity could be further increased by initial centrifugation (2500 g for 20 min) of larger volumes of milk (10 and 50 ml), and resuspension of the sediment into a 1 ml volume appropriate for IMS treatment. Following IMS, template DNA for IS900 PCR was obtained by heating the bead-cell suspension in a thermal cycler at 100 degrees C for 15 min. It was estimated that the IMS-PCR assay could detect approximately 10(3) CFU of M. ptb per 50 ml of milk (equivalent to 20 CFU/ml), whereas the minimum detection limit of direct IS900 PCR was estimated at 10(5) CFU of M. ptb per 50 ml (equivalent to 2000 CFU/ml). A blind trial was carried out in which a total of 40 spiked (10(6) CFU M. ptb) and unspiked, raw and laboratory-pasteurised milk samples were independently tested by IMS-PCR and conventional IS900 PCR. IMS-PCR correctly identified 97.5% of milk samples (sensitivity 100%, specificity 95%), including spiked milk samples before and after laboratory-pasteurisation. One false positive result was obtained which may have resulted from carryover between samples during the IMS procedure. Conventional IS900 PCR correctly identified only 72.5% of the same 40 milk samples (sensitivity 23%, specificity 100%). IMS-PCR was also shown to be capable of detecting natural M. ptb infection in raw sheep's milk, and raw and commercially pasteurised cows' milk.
Descriptors: cattle, Mycobacterium avium paratuberculosis, detection in milk, immunomagnetic polymerase chain reaction assay, diagnostic techniques, evaluation, screening method, inhibition, raw sheep milk, pasteurized cow's milk.

Greig, A. Johne's disease in sheep and goats. In Pract. [London : British Veterinary Association, 1979. Mar 2000. v. 22 (3) p. 146-151. ISSN: 0263841X
NAL Call No.: SF601. I4
Descriptors: sheep, goats, paratuberculosis, Mycobacterium avium ssp paratuberculosis, epidemiology, pathogenesis, chronic course, histopathology, differential diagnosis, species differences, disease control.

Gwozdz, J. M.; Thompson, K. G.; Murray, A.; Reichel, M. P.; Manktelow, B. W.; West, D. M. Comparison of three serological tests and an interferon-gamma assay for the diagnosis of paratuberculosis in experimentally infected sheep. Australian Veterinary Journal. November, 2000; 78 (11): 779-783. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: 14 sheep, experimental infection, comparison study, complement fixation test, an agar gel immunodiffusion test, an enzyme-linked immunosorbent assay, whole-blood interferon-gamma assay for paratuberculosis.

Gwozdz, J. M.; Thompson, K. G.; Murray, A.; West, D. M.; Manktelow, B. W. Use of the polymerase chain reaction assay for the detection of Mycobacterium avium subspecies paratuberculosis in blood and liver biopsies from experimentally infected sheep. Australian Veterinary Journal. September, 2000; 78 (9): 622-624. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: sheep diagnostic evaluation, PCR assay, 14 animals, experimental infection, sampled over 53 weeks, not a useful and reliable method.

Gwozdz, J. M.; Thompson, K. G.; Manktelow, B. W.; Murray, A.; West, D. M. Vaccination against paratuberculosis of lambs already infected experimentally with Mycobacterium avium subspecies paratuberculosis. Australian Veterinary Journal. August, 2000; 78 (8): 560-566. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: sheep, protective value, live-attenuated vaccine effects, sheep, exposed, Mycobacterium avium subsp paratuberculosis, investigation, progression, systemic immune response, experimental infection, 28-1 month old lambs, vaccine effectiveness, IFN-gamma in blood, antibody concentration of sera, sequential monitoring, IS900-baced PCR, ileum, ileocaecal lymph nodes, histological examination.

Hope, A. F.; Kluver, P. F.; Jones, S. L.; Condron, R. J. Sensitivity and specificity of two serological tests for the detection of ovine paratuberculosis. Australian Veterinary Journal. December, 2000; 78 (12): 850-856. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: 1257 sheep, serum samples, testing sensitivity and specificity, absorbed ELISA and an AGID test, detection of clinical and subclinical paratuberculosis, Mycobacterium avium ssp paratuberculosis, disease detection tests considered useful, test differences.

Hulten, K.; El Zimaity, H. M.; Collins, M. T.; Graham, D. Y.; El Zaatari, F. A. K. Cell wall deficient forms of M. avium subsp. paratuberculosis found in tissues from animals with Johne's disease by in situ hybridization. Abstracts of the General Meeting of the American Society for Microbiology. 2000; 100: 656. ISSN: 1060-2011 Note: 100th General Meeting of the American Society for Microbiology, Los Angeles, California, USA, May 21-25, 2000.
NAL Call No.: QR1.A5
Descriptors: cattle, digoxigenin stain, Johne’s disease, bacterial forms isolation.

Hulten, K.; Karttunen, T. J.; El Zimaity, H. M. T.; Naser, S. A.; Collins, M. T.; Graham, D. Y.; El Zaatari, F. A. K. Identification of cell wall deficient forms of M. avium subsp. paratuberculosis in paraffin embedded tissues from animals with Johne's disease by in situ hybridization. Journal of Microbiological Methods. October, 2000; 42 (2): 185-195. ISSN: 0167-7012
NAL Call No.: QR65.J68
Descriptors: subclinical stage, Johne’s disease, possible zoonotic disease, sarcoidosis, Crohn’s, spiked beef cubes, formalin fixed and paraffin embedded, IS900 M. paratuberculosis-specific probe labeled with digoxigenin, distinguish between the acid-fast and CWD forms of M. paratuberculosis, localized in tissue sections.

Hulten, K.; Karttunen, T.J.; El Zimaity, H.M.T.; Naser, S.A.; Almashhrawi, A.; Graham, D.Y.; El Zaatari, F.A.K. In situ hybridization method for studies of cell wall deficient M. paratuberculosis in tissue samples. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 513-518. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: Cell wall deficient forms of mycobacteria may be important in the pathogenesis of Crohn's disease and sarcoidosis. However, no method has been available to localize this type of organisms in tissue sections. We developed an in situ hybridization method for the demonstration of Mycobacterium paratuberculosis spheroplasts (cell wall deficient forms) in paraffin embedded tissue sections. M. paratuberculosis spheroplasts were prepared by treatment with glycine and lysozyme. Pieces of beef were injected with the prepared spheroplasts. The samples were fixed in buffered formalin and paraffin embedded. A M. paratuberculosis-specific probe derived from the IS900 gene was used. Specificity was controlled by using an irrelevant probe and by hybridizing sections with spheroplasts from other bacteria. Beef samples injected with M. paratuberculosis spheroplasts were the only samples that hybridized with the probe. Beef samples containing acid-fast or spheroplast forms of M. smegmatis and M. tuberculosis as well as the acid-fast forms of M. paratuberculosis did not hybridize with the probe. Unrelated bacterial controls, i.e. Helicobacter pylori and Escherichia coli were also negative in the assay. In situ hybridization with the IS900 probe provides a specific way to localize M. paratuberculosis spheroplasts in tissue sections and may be useful for studies of the connection between M. paratuberculosis and Crohn's disease and sarcoidosis. The assay may also be valuable for studies on Johne's diseased animals.
Descriptors: Mycobacterium paratuberculosis, cell walls deficient forms, spheroplasts, pathogenesis,DNA hybridization, tissues, genes, identification, beef, Helicobacter pylori, Escherichia coli, diagnostic techniques, Crohn's disease, paratuberculosis, sarcoidosis, assay, Johne's disease.

Ikonomopoulos, John A.; Gorgoulis, Vassilis G.; Kastrinakis, Nikos G.; Zacharatos, Panayotis V.; Kokotas, Stavros N.; Evangelou, Kostas; Kotsinas, Athanassios G.; Tsakris, Athanassios G.; Manolis, Evangelos N.; Kittas, Christos N. Sensitive differential detection of genetically related mycobacterial pathogens in archival material. American Journal of Clinical Pathology. December, 2000; 114 (6): 940-950. ISSN: 0002-9173
NAL Call No.: 448.8 Am34
Descriptors: humans, PCR assay; immunogenic protein MPB64 gene; outward-primed PCR (OPPCR); IS6110 element; amplification of IS1110 and 16S ribosomal RNA sequences; dot blotting assay; formalin-fixed paraffin-embedded samples from patients with tuberculosis, sarcoidosis, or Crohn’s disease; Mycobacterium avium; Mycobacterium intracellulare; Mycobacterium paratuberculosis.

Jakobsen, M. B.; Alban, L.; Nielsen, S. S. A cross-sectional study of paratuberculosis in 1155 Danish dairy cows. Preventive Veterinary Medicine. 3 July, 2000; 46 (1): 15-27. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: milk samples, 1155 cows, 22 dairy farms, risk factors, enzyme-linked immuno-sorbent assay, multiple logistic regression analysis, Jersey vs. large breeds, high parity vs. low parity, the first month after calving vs. other months of lactation, large herd size vs. small herd size, Denmark.

Johnson, Ifearulundu Y. J.; Kaneene, J. B.; Sprecher, D. J.; Gardiner, J. C.; Lloyd, J. W. The effect of subclinical Mycobacterium paratuberculosis infection on days open in Michigan, USA, dairy cows. Preventive Veterinary Medicine. 10 August, 2000; 46 (3): 171-181. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: prospective cohort study design, dairy cattle, usefulness of ELISA and fecal culture as diagnostic tools, reproduction records, 18 month monitoring period, increase in days open, suggested impact of negative energy balance in subclinical infected cows, Michigan.

Jubb, T.; Galvin, J. Herd testing to control bovine Johne's disease. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 423-428. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract:: In 1996, the cattle industries and government in the Australian state of Victoria established a Johne's disease (JD) test and control program under which participating farmers are provided with an annual ELISA test of their adult herd and advice on disease control that is tailored to their farm. The program is delivered through private veterinarians under contract with the government. There are over 600 herds enrolled in the program and about one third of these have had three or more whole herd tests. This paper provides a review of the program to date. It describes changes in ELISA reactor rates and numbers of clinical cases, and provides evidence for progress in the program.
Descriptors: cattle herds, Mycobacterium, paratuberculosis disease control, Australian government policy, diagnostic text, ELISA, veterinarians role, disease incidence, surveillance, program review, Victoria, Australia.

Kennedy, D.J.; Allworth, M.B. Progress in national control and assurance programs for bovine Johne's disease in Australia. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 443-451. ISSN: 03789-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: Cattle strains of Mycobacterium paratuberculosis are known to infect cattle, goats and alpaca in southeastern Australia, where there are also significant numbers of farmed deer. Although sheep strains have recently been identified in some cattle in Australia, epidemiological evidence to date supports the distinction (between bovine Johne's disease (JD), caused by cattle strains in cattle, goats and alpaca, and ovine JD, caused by sheep strains in sheep and goats) for the purposes of control and assurance programs. The National Johne's Disease Control Program is coordinated by the Australian Animal Health Council, working with the livestock industries and with the Commonwealth, state and territory governments. The council also brokers industry and government funding for the program. The National Johne's Disease Market Assurance Program for Cattle was launched in 1996 as the first of a suite of voluntary national market assurance programs (MAPs) to assess and certify herds as negative for JD. By December 1998, over 550 herds had achieved an assessed negative status. A MAP was also launched for alpaca in 1998 and a program for goats should be finalised in early 1999. National standards for state control of JD through zoning, movement controls and procedures in infected and suspect herds have also been developed. The paper covers factors affecting development and implementation, uptake of and improvements to national control and assurance programs for bovine JD in Australia.
Descriptors: Johne's disease, cattle, paratuberculosis, disease control, government policy, Mycobacterium paratuberculosis, goats, alpacas, deer, sheep, epidemiology, certification, disease incidence, Australia.

Koets, A. P.; Adugna, G.; Janss, L. L. G.; van Weering, H. J.; Kalis, C. H. J.; Wentink, G. H.; Rutten, V. P. M. G.; Schukken, Y. H. Genetic variation of susceptibility to Mycobacterium avium subsp. paratuberculosis infection in dairy cattle. Journal of Dairy Science. November, 2000; 83 (11): 2702-2708. ISSN: 0022-0302
NAL Call No.: 44.8 J822
Descriptors: Dutch dairy cattle, 3020 cows, infection status at slaughter, standard polygenic statistical probit model was used to estimate heritabilities, vaccination trial data, variable susceptibilities, genetic selection as a control measure.

Koets, A.P.; Rutten, V.P.M.G.; Bakker, D.; van der. Hage, M.H.; van Eden, W. Lewis rats are not susceptible to oral infection with Mycobacterium avium subsp. paratuberculosis. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 487-495. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract:: Pathogenesis studies of Mycobacterium avium subsp. paratuberculosis infection in ruminants are hampered by the long incubation time of the disease. A laboratory animal model with a shorter incubation time would facilitate research in this field. Although small rodents are usually considered to be resistant to M.a. paratuberculosis infection, several susceptible murine strains have been found. To our knowledge, there are no detailed reports with regard to susceptibility in rats. The Lewis rat is a valuable model for inflammatory bowel disease studies as well as autoimmune diseases involving mycobacteria as inducing agents. In this study Lewis rats were used to investigate their potential as a small laboratory animal model for paratuberculosis. In total 28 female Lewis rats were orally inoculated with M.a. paratuberculosis. The rats were first inoculated at 3 weeks of age, and 12 more inoculations followed in increasing intervals during the 3 months to follow. Eight control rats received a sham inoculation. Over 9 months, two rats from each group were sacrificed at regular intervals and immunological and histopathological examinations were performed on the gastrointestinal tract, the liver and the spleen. None of the rats developed lesions which were indicative of mycobacterial infection as determined by histology with HE and Ziehl-Neelsen staining. The bacteria could not be recultured from samples taken from the gut, the liver or the spleen. The immunological tests however, showed that bacteria had entered via the intestinal tract. From this study it appears that Lewis rats are resistant to oral inoculation with M.a. paratuberculosis, and not suitable as a model to study the immunopathogenesis ofparatuberculosis as it occurs in ruminants.
Descriptors:rats, Mycobacterium avium ssp paratuberculosis, oral administration, infection, susceptibility, pathogenesis, animal models, experimental infections, histopathology, digestive tract, liver, spleen, postmortem examinations, lesions.

Kramsky, J.A.; Miller, D.S.; Hope, A.; Collins, M.T. Modification of a bovine ELISA to detect camelid antibodies to Mycobacterium paratuberculosis. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 333-337. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: Mycobacterium avium subsp. paratuberculosis infection, or Johne's disease, reportedly has a low prevalence in South American camelid populations. Recently, however, single cases in the United States as well as an outbreak of the disease in Australian alpacas (Lama pacos) have been described. To provide a rapid and cost-effective method of diagnosing Johne's disease in this species, the bovine Parachek Johne's Absorbed EIA (CSL, Vic., Australia) was modified to create a camelid-specific serum antibody assay. An anti-llama IgG conjugated to horseradish peroxidase replaced the anti-bovine immunoglobulin. Checkerboard titration of principal reagents was performed using serum from nine tissue and/or fecal culture-positive camelids. Optimal dilutions of key components were determined in order to provide clear discrimination between positive and negative controls. Completion of a kinetic assay determined the optical density at which the enzyme-substrate reaction should be stopped. A herd of 100 camelids with no history of disease or exposure to M. a. paratuberculosis, a subset of which were tissue and/or fecal culture-negative, was tested to establish a cut-off value. Sample results were expressed as a percentage of the results for control sera by transforming optical density values to ELISA values (EV%). A preliminary EV% cut-off of 20 was established. Using this prototype assay, culture-positive animals showed significantly different antibody responses from culture-negative animals. These results indicate that this camelid-specific ELISA, once refined, may be a useful tool for screening camelid herds for M. a. paratuberculosis infection.
Descriptors: alpacas, llamas, Mycobacterium avium paratuberculosis, detection methods, ELISA, diagnosis disease outbreaks, IgG, herds, assays.

Lawlor, H. A.; Mutharia, L. M. Characterization of the thioredoxin system of Mycobacterium paratuberculosis. Abstracts of the General Meeting of the American Society for Microbiology. 2000; 100: 649. ISSN: 1060-2011 Note: 100th General Meeting of the American Society for Microbiology, Los Angeles, California, USA, May 21-25, 2000
NAL Call No.: QR1.A5
Descriptors: pET expression system, Mycobacterium intracellulare, Mycobacterium paratuberculosis, thioredoxin system; Mycobacterium tuberculosis, genome, gentamycin, recombinant his tagged proteins, thioredoxin system characterization, antibodies, reductase, redox-cycling system, thioredoxin reductase gene.

Lund, B. M.; Donnelly, C. W.; Rampling, A. Heat resistance of mycobacterium paratuberculosis. Letters in Applied Microbiology. August, 2000; 31 (2): 184-185. ISSN: 0266-8254
NAL Call No.: QR1.L47
Descriptors: bacterial characteristics, temperature tolerance, viability testing, Crohn’s disease, Johne's disease.

Marsh, I.; Whittington, R.; Millar, D. Quality control and optimized procedure of hybridization capture-PCR for the identification of Mycobacterium avium subsp. paratuberculosis in faeces. Molecular and Cellular Probes. August, 2000; 14 (4): 219-232. ISSN: 0890-8508
NAL Call No.: RB43.7.M63
Descriptors: fecal samples, cattle, Johne’s disease, sheep, capture and washing of magnetic beads, low cost method, diagnostic method, pooled samples.

Michel, A.L.; Bastianello, S.S. Paratuberculosis in sheep: an emerging disease in South Africa. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 299-307. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract:: During a serological survey for ovine paratuberculosis a total of 145934 ovine serum samples from 2019 farms throughout South Africa were tested by means of the AGID assay. Fifty-two infected farms were identified in the Western Cape and Eastern Cape provinces. Links between infected farms in the two provinces were established. Examination of the distribution of infected farms in the Western Cape indicated a positive correlation between acid soils and occurrence of infection. In an attempt to increase the sensitivity and facilitate screening of large numbers of sera two commercial ELISA systems were evaluated for their potential use in a future monitoring program. Sera from histologically positive sheep and known negative sheep flocks were used. The highest sensitivity (50.9%) was found if both ELISA systems were run concurrently and the results of both systems combined.
Descriptors: sheep, Mycobacterium avium ssp paratuberculosis, serological surveys, bioassays, farms, geographical distribution, acid soils, screening for disease, ELISA, monitoring, South Africa.

Momotani, E.; Miyama, M.; To, T. L.; Yoshihara, K.; Gotoh, H. Adhesion molecules and chemokines in granulomas by Mycobacterium avium subspecies paratuberculosis in TNF alpha deficient mice. Immunology Letters. September, 2000; 73 (2-3): 194. ISSN: 0165-2478. Note: 24th European Immunology Meeting of the European Federation of Immunological Societies (EFIS), Poznan, Poland, September 23-26, 2000.
NAL Call No.: QR180. I53
Descriptors: C57BL/6 mouse model, tumor necrosis factor alpha deficiency, wild-type, Mycobacterium-avium-paratuberculosis, fibronectin, RANTES, epithelioid granuloma cell border expression, intercellular-adhesion-moelcule-1, macrophage-chemoattractant-protein-1, macrophage chemoattractant protein 3, granuloma-expression.

Muskens, J.; Barkema, H.W.; Russchen, E.; van Maanen, K.; Schukken, Y.H.; Bakker, D. Prevalence and regional distribution of paratuberculosis in dairy herds in the Netherlands. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 253-261. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract:: In the Netherlands a survey was conducted to estimate the prevalence of paratuberculosis in dairy herds. In total 15822 cows of at least 3 years of age, belonging to 378 herds were tested using an absorbed ELISA. Of these herds, 55% (n = 207) had one or more serologically positive cows. Of the positive non-vaccinated herds, most had one (n = 98) or two (n = 49) positive cows. The percentage positive cows per herd was 2.5 +/- 3.2%. The true prevalences on cow and herd levels, based on a test sensitivity that ranged from 0.3 to 0.4 and a specificity that ranged from 0.985 and 0.995, were estimated at 2.7-6.9% and 31-71%. Seven herds had been vaccinated against paratuberculosis and these herds had a significantly higher percentage of serologically positive cows (23%) than the non-vaccinated herds (2.5%). In conclusion, a small percentage of the dairy cows and a high percentage of the dairy herds in the Netherlands is serologically positive. The percentages true infected cows and herds are difficult to estimate precisely due to uncertainties in test sensitivity and specificity.
Descriptors: dairy cattle herds, Mycobacterium paratuberculosis paratuberculosis, disease prevalence, geographical distribution, surveys, ELISA, vaccination, seroprevalence.

Naser, S.A.; Hulten, K.; Shafran, I.; Graham, D.Y.; El Zaatari, F.A.K. Specific seroreactivity of Crohn's disease patients against p35 and p36 antigens of M. avium subsp. paratuberculosis. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 497-504. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract:Crohn's disease (CD) is a chronic inflammatory bowel disease that is similar to Johne's disease in ruminants. Recent data have strengthened the association of M. avium subsp. paratuberculosis (M. paratuberculosis) with CD. To provide more evidence of an etiological association, antibody reactivities from CD patients were tested by immunoblotting against recombinant antigens that were identified previously from our M. paratuberculosis genomic library. Two clones (designated pMptb#40 (3.2-kb insert) and #48 (1.4-kb insert) expressing a 35K (p35)- and 36K (p36)-antigens showed specific reactivities with serum samples from CD patients. Serum samples from 75% of 53 CD patients, 14% of 35 normal individuals and 10% of 10 ulcerative colitis patients reacted to p35 antigen. Reactivities were also observed with serum samples from 89% of 89 CD patients, 14% of 50 normal controls and 15% of 29 ulcerative colitis patients reacted with p36 antigen. When the reactivity results from p35 and p36 were combined, the background from the controls was eliminated, i.e. only the CD patients reacted to both p35 and p36. The positive predictive value was 98% with specificity of 98% and the negative predictive value was 76% with sensitivity of 74% (39 positive out of 53). A statistical significance (p < 0.0001) was observed when the results from CD serum samples reacting with either or both antigens were compared to the controls. The reactivity of anti-M. paratuberculosis (specifically against p35 and p36 antigens) antibodies in a significant proportion of CD patients would suggest a causal role for the organism in CD.
Descriptors: humans, Crohn's disease Mycobacterium avium, immune response, antigens, infections, etiology, immunoblotting, recombinant antigens, Mycobacterium paratuberculosis, blood serum.

Nebbia, P.; Robino, P.; Ferroglio, E.; Rossi, L.; Meneguz, G.; Rosati, S. Paratuberculosis in red deer (Cervus elaphus hippelaphus) in the western Alps. Veterinary Research Communications. November, 2000; 24 (7): 435-443. ISSN: 0165-7380
NAL Call No.: SF601.38
Descriptors: 19 red deer, Cottain Alps, DNA amplification on mesenteric lymph nodes, Mycobacterium avium paratuberculosis, Johne’s disease, detected, strain similar to bovine strains, in ability of serological tests for monitoring, serum antibodies by the AGID and ELISA tests.

Nielsen, S. S.; Thamsborg, S. M.; Houe, H.; Bitsch, V. Bulk-tank milk ELISA antibodies for estimating the prevalence of paratuberculosis in Danish dairy herds. Preventive Veterinary Medicine. March 29, 2000; 44 (1-2): 1-7. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: Johne’s disease prevalence, regional differences, ELISA to test antibodies in bulk milk testing, 6 milk collection centers, 900 herds examined, Denmark.

O' Doherty, A.; O' Grady, D.; Smith, T.; O' Farrell, K. J.; Egan, J. A survey of Johne's disease in imported animals in the Republic of Ireland. Irish Journal of Agricultural and Food Research. December, 2000; 39 (3): 486. ISSN: 0791-6833 Note: 6th Annual Agricultural Research Forum, March 14-15, 2000
NAL Call No.: S539.5.I74
Descriptors: infection rates, surveillance, cattle, Mycobacterium avium ssp. paratuberculosis, disease incidence, imported cattle.

Oikawa, Shin; Katoh, Norio; Watanabe, Atsushi; Nishi, Hideki; Kurosawa, Takashi; Satoh, Hiroshi. Serum apolipoprotein A-I evaluated as a possible marker in cows with Johne's disease. Journal of Rakuno Gakuen University Natural Science. October, 2000; 25 (1): 37-42. Note: In Japanese with English summary.
Descriptors: Mycobacterium paratuberculosis, cattle, serum levels of apolipoprotein A-I as a disease indicator, protein levels, cholesterol serum concentration; phospholipids levels, albumin serum concentrations, symptomatic and asymptomatic cattle, reliable marker in evaluating the pathogenesis, intestinal dysfunction, Johne's disease.

Olsen, Ingrid; Reitan, Liv J.; Holstad, Gudmund; Wiker, Harald G. Alkyl hydroperoxide reductases C and D are major antigens constitutively expressed by Mycobacterium avium subsp. paratuberculosis. Infection and Immunity. Feb., 2000; 68 (2): 801-808. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: alkyl hydroperoxide reductase C and D antigens, gamma-interferon, polyclonal and polyvalent antiserum, Mycobacterium avium ssp avium, species differentiation.

Paisley, Larry G.; Tharaldsen, Jorun; Jarp, Jorun. A simulated surveillance program for bovine paratuberculosis in dairy herds in Norway. Preventive Veterinary Medicine. April 28, 2000; 44 (3-4): 141-151. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: Monte Carlo simulation models, prevalence of MAP, feasibility and potential results of a proposed national survey, low probability of detection, study not recommended, epidemiology.

Parrish, N. M.; Townsend, C. A.; Dick, J. D. N-octanesulphonylacetamide (OSA), an inhibitor of mycolic acid synthesis, inhibits the growth of Mycobacterium paratuberculosis and is potentiated by the addition of short chain alcohols. Abstracts of the General Meeting of the American Society for Microbiology. 2000; 100: 655. ISSN: 1060-2011 Note: 100th General Meeting of the American Society for Microbiology, Los Angeles, California, USA, May 21-25, 2000
NAL Call No.: QR1.A5
Descriptors: bacterial infection, humans, antibacterial drug effects, butanol, ciproflozacin, ethanol, isoprppanol, mycobactin-J, streptomycin.

Pavlik, I.; Bartl, J.; Dvorska, L.; Svastova, P.; Du-Maine, R.; Machackova, M.; Ayle, W.Y.; Horvathova, A. Epidemiology of paratuberculosis in wild ruminants studied by restriction fragment length polymorphism in the Czech Republic during the period 1995-1998. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 231-251. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract:: In two studies carried out during the period 1995-1998, paratuberculosis was diagnosed in domestic and wild ruminants in the Czech Republic. The isolated Mycobacterium avium subspecies paratuberculosis strains were analysed by standardised restriction fragment length polymorphism (RFLP) [Pavlik, I., Horvathova, A., Dvorska, L., Bartl, J., Svastova, P., du Maine, R., Rychlik, I., 1999. J. Microbiol. Methods 38, 155-167]. In December 1992, 19 late pregnant Charolais heifers were imported to the Czech Republic from Hungary (original import from France to Hungary). One 11-month-old heifer roamed in the wild in a range of approximately 15-20 km for 7 months from November 1993 to May 1994. Upon capture, the animal showed clinical signs of paratuberculosis (emaciation and diarrhoea). Seven other animals from the same herd were infected with the identical RFLP type B-C1 of M. paratuberculosis. During the period 1995-1996, samples were taken and examined from the small intestine and corresponding lymph nodes of 84 wild ruminants: 19 red deers (Cervus elaphus) and 65 roe-deers (Capreolus capreolus). These wild ruminants originated from 44 different locations within the same district from as the infected escaped heifer. Five M. paratuberculosis strains were isolated: one strain of RFLP type B-C1 from a stag and three strains of RFLP type B-C1 and one strain of RFLP type B-C9 from roe-deer. The three wild ruminants (one stag and two roe-deer) infected with the same RFLP type B-C1 were detected in the same area as the heifer, suggesting that this was the likely infection source. However, the infection source of the roe-deer infected with strain of RFLP type B-C9 was obviously different, and the stags that escaped from the farm were purchased from an area infected with this RFLP type. In the second study carried out during 1997-1998 in the whole Czech Republic (divided into 76 districts), 718 wild ruminants were examined from 90% of the districts. M. paratuberculosis was isolated from 25 (3.5%) animals from the wild, from farms and from game parks: 7.1% of 132 red deers, 1.5% of 336 roe-deers, 3.9% of 178 fallow deers (Dama dama), and 4.2% of 48 moufflons (Ovis musimon). This study discovered three RFLP types (B-C1, D-C12 and M-C16). A surprising finding was that of M. paratuberculosis (RFLP type B-C1) infection in roe-deer and a fallow deer in their natural habitat. The infection source was determined to have originated from two imported Holstein and Limousine cattle herds infected with the same strain. In the case of a mother and daughter roe-deer infected with RFLP type M-C16 and a fallow deer infected with RFLP type D-C12, all roaming in their natural habitat, the infection source was not discovered. The highest incidence of clinically ill wild ruminants was found in farmed red deer, and no relationship was found between the RFLP type or ruminant species and clinical status of animal.
Descriptors: heifers, Cervus elaphus, red deer,paratuberculosis, epidemiology, restriction fragment length polymorphism, diagnosis, Mycobacterium avium, disease symptoms, diarrhea, disease transmission, herds, lymph nodes, small intestine, fallow deer, mouflon, habitats, Czech Republic.

Pavlik, I.; Matlova, L.; Bartl, J.; Svastova, P.; Dvorska, L.; Whitlock, R. Parallel faecal and organ Mycobacterium avium subsp. paratuberculosis culture of different productivity types of cattle. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 309-342. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: Faecal (at least 3 months before slaughtering) and organ examinations were carried out in 611 animals (497 dairy, 69 dual-purpose and 44 beef cattle) originating from eight paratuberculosis infected cattle herds. The diagnosis in cattle was established by routine intestinal culture (ileum and the adjacent lymph nodes) after slaughter. In selected 132 animals, post-mortem intensive culture was performed on tissue samples collected from the gastrointestinal tract (duodenum, jejunum, ileum, ileocecal valve, caecum, rectum) and the corresponding lymph nodes, submandibular, retropharyngeal, tracheobronchial, liver and supramammary lymph nodes, kidney, liver and spleen. In 251 (41.1%) of all 611 animals, Mycobacterium avium subspecies paratuberculosis could be isolated from the faeces; in 164 (65.7%) out of 251 shedding animals the infection was detected in the ileum and adjacent lymph nodes. The detection of M. paratuberculosis by routine intestinal culture of faecal culture positive animals varied from 46.0% in animals shedding 1 CFU (colony forming unit), to 94.7% in massive shedders. On the contrary, M. paratuberculosis was detected by routine intestinal culture in 92 (25.5%) of the 360 faecal culture negative animals. Shedding animals had significantly higher (P < 0.01) number of organisms in their organs than non-shedding animals. During the intensive tissue cultivation from selected 132 animals, 72 (54.5%) of them were positive. For the negative animals, no significant difference was found between the detection rate in organs examined after slaughter with routine and intensive method. However, in the subgroup of tissue culture positive animals a highly significant difference (P < 0.01) was found by intensive examination (83.0%) compared with the routine examination (60.4%). Out of 72 tissue culture positive animals 73.6% of them harboured M. paratuberculosis in the gastrointestinal tract, 16.7% in the gastrointestinal tract and the parenchymatous organs, tracheobronchial and mandibular lymph nodes. The rest of the 9.7% of the infection was detected in the lymph nodes of head and lungs. Our study concerning the distribution of M. paratuberculosis by intensive examinations revealed a minimum effect of breed and production type on localisation of the agent. Thus, the results suggest that in case of an active infection, M. paratuberculosis can be localised in different organs of animals irrespective of their breed or production type.
Descriptors: dairy and beef cattle, dual-purpose-cattle, Mycobacterium avium ssp paratuberculosis. feces and various organs examinations, organ distribution, pre-slaughter diagnosis, post slaughter, intestines, fecal culture, lymph nodes, postmortem examinations, digestive tract, kidneys, liver, spleen, shedding, in-vitro-culture.

Pym, Alexander S.; Brosch, Roland. Tools for the population genomics of the tubercle bacilli.
Genome Research. December, 2000; 10 (12): 1837-1839. ISSN: 1088-9051
Descriptors: molecular genetics, methods and techniques, genomics, Mycobacterium avium, Mycobacterium bovis, Mycobacterium leprae, Mycobacterium microti, Mycobacterium paratuberculosis, Mycobacterium tuberculosis, Mycobacterium ulcerans (Mycobacteriaceae, DNA, amplification, sequencing.

Rastogi, Nalin; Goh, Khye Seng; Berchel, Mylene; Bryskier, Andre. In vitro activities of the ketolides telithromycin (HMR 3647) and HMR 3004 compared to those of clarithromycin against slowly growing mycobacteria at pHs 6.8 and 7.4. Antimicrobial Agents and Chemotherapy. October, 2000; 44 (10): 2848-2852. ISSN: 0066-4804
NAL Call No.: RM265.A5132
Descriptors: 34 strains tested, Mycobacterium bovis BCG, M. ulcerans, M. avium, and M. paratuberculosis, M. africanum, M. bovis, and M. simiae, semisynthetic ketolides, in vitro testing, anti-bacterial agents.

Reviriego, Francisco J.; Moreno, Miguel A.; Dominguez, Lucas. Soil type as a putative risk factor of ovine and caprine paratuberculosis seropositivity in Spain. Preventive Veterinary Medicine. Jan. 5, 2000; 43 (1): 43-51. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: bacterial pathogen distribution, cross-sectional study, questionnaire date, 61 herds, goats, sheep, serum testing, agar-gel immunodiffusion, effects of soil types and herd size, Spain.

Rowe, M. T.; Grant, I. R.; Dundee, L.; Ball, H. J. Heat resistance of Mycobacterium avium subsp. paratuberculosis in milk. Irish Journal of Agricultural and Food Research. June, 2000; 39 (2): 203-208. ISSN: 0791-6833
NAL Call No.: S539.5.I74
Descriptors: milk, Johne’s disease, Crohn’s disease, heat resistance investigated, (1) combined acid fast/viability stain to visualise viable MAP in milk at different stages during pasteurisation; (2) comparison of thermal resistance of clumped and declumped MAP cells, (3) assessing the lethality of a range of time/temperature heat treatments, effect of clumping.

Sanderson, Michael W.; Dargatz, David A.; Garry, Franklyn B. Biosecurity practices of beef cow-calf producers. Journal of the American Veterinary Medical Association. July 15, 2000; 217 (2): 185-189. ISSN: 0003-1488
NAL Call No.: 41.8 Am3
Descriptors: biosecurity practices, beef cattle, 2 phase study, cross-sectional survey, 2,713 cow/calf operations (phase 1. ), 1,190 cow/calf operations (phase 2), interview study, management practices, level of risky management practices, vaccines given, quarantine time, proportion of imported animals quarantined, testing for various diseases in imported animals, need for development of rational and cost effective biosafety plans.

Sanna, E.; Woodall, C. J.; Watt, N. J.; Clarke, C. J.; Pittau, M.; Leoni, A.; Nieddu, A. M. In situ-PCR for the detection of Mycobacterium paratuberculosis DNA in paraffin-embedded tissues. European Journal of Histochemistry. 2000; 44 (2): 179-184. ISSN: 1121-760X
Descriptors: sheep gut tissues, classical lesions of paratuberculosis, negative control samples, 413-bp fragment of the IS900 sequence was amplified in-situ, hybridised to an internal PCR-synthesised digoxygenin-labelled probe, diagnostic and patho genesis potential.

Selby, W.Pathogenesis and therapeutic aspects of Crohn's disease. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 505-511. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.:SF601.V44
Abstract:: Crohn's disease is a chronic, relapsing inflammatory condition affecting any part of the human gastrointestinal tract. It is characterized by transmural inflammation with deep ulceration, thickening of the bowel wall and fistula formation. The hallmark is the non-caseating granuloma. Clinical presentation depends upon the site of the inflammation. Pain and diarrhoea are frequent. Extraintestinal manifestations develop in up to 25% of patients and perianal disease is also frequent. The aetiology of Crohn's disease remains unknown. On the host side, genetic factors are important and the immune system is central to the development of the inflammation. Several environmental factors also play a role, in particular smoking. The presence of intestinal luminal contents appears to be essential for the development of Crohn's disease. A number of specific infectious causes have also been proposed, most recently measles virus and M. avium subsp. Paratuberculosis. The latter has been considered because of the similarity between BJD and Crohn's disease, although there are also important differences. Evidence suggesting that this agent plays a role includes isolation of the organism from some patients, clustering, and identification by PCR of M.a. paratuberculosis DNA in tissue. However, many other workers have been unable to reproduce these findings. Treatment of Crohn's disease is generally with 5-aminosalicylic acid (5-ASA) compounds, corticosteroids, immunosuppressive agents and antibiotics. The majority of patients with active disease will respond to one or a combination of the therapies. Recently, broad-spectrum antibiotics have been shown to be as effective as oral corticosteroids. The challenge in Crohn's disease remains the prevention of relapse once remission has been achieved. Oral 5-ASA preparations can be beneficial, particularly after surgery. Immunosuppression, particularly with azathioprine or 6-mercaptopurine, is helpful in patients with resistant inflammation. Antibiotics may delay the time to relapse when used for active disease. The use of antimycobacterial therapy directed against M.a. paratuberculosis shows promising results but needs further evaluation. Up to 80% of patients with Crohn's disease will require surgery at some stage in the course of their illness. The challenge remains to try and prevent resection of inflamed intestine and to improve the quality of life of those affected by this disorder.
Descriptors: humans, Crohn's disease, pathogenesis, treatment, digestive tract inflammation, clinical aspects, etiology, hosts, Mycobacterium avium, measles virus, paratuberculosis, polymerase chain reaction, aminosalicylic acid, corticoids, immunosuppressive agents, antibiotics.

Sheridan, Joe M.; Bull, Tim; Sumar, Nazira; Cheng, Jun; Stellakis, Michael; Hermon, Taylor John. Prediction of the structure, function and cellular location of proteins encoded by the GS element, a 'pathogenicity island' in MAP Mycobacterium avium subsp. paratuberculosis. Biochemical Society Transactions. 2000; 28 (3): A76. ISSN: 0300-5127 Note: 671st Meeting of the Biochemical Society., England, UK, April 11-13, 2000
NAL Call No.: QD415.A1B58
Descriptors: bacterial genetics, proteins, cellular locations, functions, vaccines.

Sheridan, Joe M.; Bull, Tim; Sumar, Nazira; Cheng, Jun; Stellakis, Michael; Ford, Jon; Hermon, Taylor John. Prediction of the structure, function and cellular location of proteins encoded by the GS element, a 'pathogenicity island' in Mycobacterium avium subsp. paratuberculosis (MAP). Biochemical Society Transactions. October, 2000; 28 (5): A234. ISSN: 0300-5127. Note: 18th International Congress of Biochemistry and Molecular Biology, Birmingham, UK, July 16-20, 2000.
NAL Call No.: QD415.A1B58
Descriptors: protein genetics, GS-encoded protein, systhesis, immune process, infection.

Singh, S. V.; Singh, P. P.; Singh, N.; Gupta, V. K. Characterization of lipid pattern of Mycobacterium paratuberculosis isolates from goats and sheep. Indian Journal of Animal Sciences. September, 2000; 70 (9): 899-903. ISSN: 0367-8318
NAL Call No.: 41.8 IN22
Descriptors: sheep, goats, strain comparison study, patterns, alpha and ketomycolates, of methoxy mycolate.

Stabel, J. R.; Lee, Haa Yung; Kehrli, M. E. Jr. Cytokine secretion and expression in cows infected with Mycobacterium paratuberculosis. FASEB Journal. April 20, 2000; 14 (6): A1111. ISSN: 0892-6638 Note: Joint Annual Meeting of the American Association of Immunologists and the Clinical Immunology Society, Seattle, Washington, USA, May 12-16, 2000.
NAL Call No.: QH301.F3
Descriptors: cattle, Mycobacterium avium paratuberculosis, IL-1 [interleukin-1]; IL-2 [interleukin-2]; concanavalin-A; cytokine expression and secretion, interferon gamma, tumor necrosis factor.

Stabel, Judith R. Cytokine secretion by peripheral blood mononuclear cells from cows infected with Mycobacterium paratuberculosis. American Journal of Veterinary Research. July, 2000; 61 (7): 754-760. ISSN: 0002-9645
NAL Call No.: 41.8 Am3A
Descriptors: cattle, Johne’s disease, cytokine levels, comparison between healthy, subclinical infected and clinically infected cattle, interleukin (IL)-1, IL-2, IL-6, tumor necrosis factor (TNF), interferon-gamma (IFN-gamma), post in vitro stimulation of cells with concanavalin A (ConA), lipopolysaccharide (LPS), or a whole-cell sonicate of M paratuberculosis (MpS), proliferative responses of PBMC post ConA, phytohemagglutinin, pokeweed mitogen (PWM), or MpS, activated T cells may delay the progression of paratuberculosis.

Stabel, J.R.Johne's disease and milk: do consumers need to worry. J Dairy Sci. Savoy, Ill. : American Dairy Science Association. July 2000. v. 83 (7) p. 1659-1663. ISSN: 0022-0302
NAL Call No.:44.8 J822
Abstract:: Mycobacterium paratuberculosis, an acid-fast bacillus that causes enteritis in ruminants, has been suggested as an etiological agent of Crohn's disease in humans. The mode of transmission is unclear; however, some evidence suggests that humans may become infected via contaminated milk. Currently, it is not known whether commercial pasteurization effectively kills M. paratuberculosis in contaminated raw milk. Using a laboratory-scale pasteurizer unit designed to simulate the high-temperature, short-time method (72 degrees C, 15 sec) currently used by commercial dairies, we previously demonstrated that treatment of raw milk inoculated with 10(4) to 10(6) cfu of M. paratuberculosis/ml reduced numbers to an undetectable level. However, M. paratuberculosis is an intracellular pathogen that resides within the macrophages of the host and evades destruction. We subsequently performed further experiments examining heat treatment of milk inoculated with mammary gland macrophages containing ingested M. paratuberculosis. Heat treatment of these samples under high-temperature, short-time conditions demonstrated that the macrophage does not protect the organism because we were unable to recover any viable M. paratuberculosis from the samples. Conversely, other researchers have demonstrated that a residual population of M. paratuberculosis may survive heat treatment of milk. In addition, a recent news report stated that viable M. paratuberculosis organisms have been cultured from retail-ready milk in Ireland. A summary of past and current studies concerning this issue along with a discussion of methodologies used to recover M. paratuberculosis from experimentally inoculated milk will be presented in this paper.
Descriptors: Mycobacterium paratuberculosis, dairy cows, paratuberculosis, contaminated milk, bacterial count, pasteurization processing temperature and duration, milkborne diseases, Crohn's disease, culture media and techniques, disease control, food safety concerns.

Stabel, J.R.Transitions in immune responses to Mycobacterium paratuberculosis. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 465-473. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: The host immune response to infection with Mycobacterium paratuberculosis is paradoxical, with strong cell-mediated immune responses during the early, subclinical stages of infection and strong humoral responses during the late clinical stages of the disease. Cell-mediated immune responses modulated by various T cell subsets are essential to provide protective immunity and prevent progression of the disease. Secretion of cytokines by T cell populations serves to activate macrophages to kill ingested M. paratuberculosis as well as activate other T cell subsets to contain the infection. This paper reviews the current knowledge of T cell immune responses in M. paratuberculosis infection based upon clinical studies and research using mouse models.
Descriptors: Mycobacterium paratuberculosis, host immune response, latent infections, disease course, clinical aspects, T lymphocytes, cytokines, secretion, macrophages, Johne's disease.

Sockett, D.C. Johne's disease diagnosis and control. Adv Dairy Technol. Edmonton : University of Alberta, Faculty of Extension, c1989. 2000. v. 12 p. 73-84. ISSN: 1184-0684 Note: Paper presented at the 18th Annual Western Canadian Dairy Seminar held March 7-10, 2000, Red Deer, Alberta.
URL: http://www.afns.ualberta.ca
NAL Call No.: SF223.W478
Descriptors: dairy cows, Mycobacterium paratuberculosis, Johnes' disease, diagnosis and control.

Step, D. L.; Streeter, Robert N.; Kirkpatrick, John G. Johne's disease update. Bovine Practitioner. January, 2000; 34 (1): 6-12. ISSN: 0524-1685
NAL Call No.: SF779.5.A1B6
Descriptors: cattle, description of the disease, availability of diagnostic tests, control, eradication, reduction of exposure, pathogenesis.

Stringfellow, D. A.; Givens, M. D. Infectious agents in bovine embryo production: Hazards and solutions. Theriogenology. January 1, 2000; 53 (1): 85-94. ISSN: 0093-691X Note: Proceedings of the Annual Conference of the International Embryo Transfer Society, Maastricht, Netherlands, January 09-11, 2000
NAL Call No.: QP251.A1T5
Descriptors: infectious organisms, Haemophilus somnus, Mycobacterium paratuberculosis Mycoplasma bovigenitalium, Mycoplasma bovis, Ureaplasma diversum, bovine embryos, bovine herpesvirus 1 and 4, rinderpest virus.

Storset, A. K.; Berntsen, G.; Larsen, H. J. S. Kinetics of IL-2 receptor expression on lymphocyte subsets from goats infected with Mycobacterium avium subsp. paratuberculosis after specific in vitro stimulation. Veterinary Immunology and Immunopathology. 23 November, 2000; 77 (1-2): 43-54. ISSN: 0165-2427
NAL Call No.: SF757.2.V38
Descriptors: goats, quantification of surface IL-2R expression on activated lymphocytes, flow cytometry, cellular immunity, stimulation with purified protein derivate from M.A.P., gammadelta T cells, CD4+ cells, CD8+ T cells, immune responses.

Sung, Nackmoon; Collins, Michael T. Effect of three factors in cheese production (pH, salt, and heat) on Mycobacterium avium subsp. paratuberculosis viability. Applied and Environmental Microbiology. April, 2000; 66 (4): 1334-1339. ISSN: 0099-2240
NAL Call No.: 448.3 Ap5
Descriptors: kinetics of bacterial pathogen inactivation, 60 day cheese curing process, ATCC strain 19698, Dominic, low pH and NaCl are two factors contributing to the inactivation, the radiometric culture method, heat treatment of raw milk, 60-day curing period will inactivate about 103 cells/ml.

Thorne, S. H.; Norman, E.; McFadden, J. Approaches to genetic manipulation of Mycobacterium paratuberculosis. Abstracts of the General Meeting of the American Society for Microbiology. 2000; 100: 96. ISSN: 1060-2011 Note: 100th General Meeting of the American Society for Microbiology, Los Angeles, California, USA, May 21-25, 2000.
NAL Call No.: QR1.A5
Descriptors: molecular genetics, biotechnology.

Weber, A.; Shaefer, Schmidt R.; Fuchs, D.; Weigl, U. Occurrence of Mycobacterium paratuberculosis in faecal samples of cattle in Bavaria. Tieraerztliche Umschau. Feb. 1, 2000; 55 (2): 97-99. ISSN: 0049-3864 Note: In German with English and German summaries.
NAL Call No.: 41.8 T445
Descriptors: fecal samples, 1116 cattle, incidence of disease in Austria.

Webster, S.R. The financial consequences of ovine Johne's disease for New South Wales sheep producers. Asian Australas J. Anim Sci. Seoul, Korea : AAAP and Korean Society of Animal Nutrition. July 2000. v. 13 (Suppl.) p. 465-468. ISSN: 1011-2367. Note: In the supplement: Animal production for a consuming world, vol. C / edited by G.M. Stone. Proceedings of the 9th Congress of the Asian-Australasian Association of Animal Production Societies and 23rd Biennial Conference of the Australian Society of Animal Production held July 3-7, 2000, Sydney, Australia.
NAL Call No.: SF55.A78A7
Descriptors: paratuberculosis, sheep disease, economic impact, Johne's disease, Australia.

Wells, S.J.Biosecurity on dairy operations: hazards and risks.J Dairy Sci. Savoy, Ill. : American Dairy Science Association. Oct 2000. v. 83 (10) p. 2380-2386. ISSN: 0022-0302
NAL Call No.: 44.8 J822
Descriptors: dairy herds, biosafety, Mycobacterium avium ssp paratuberculosis, paratuberculosis, risk assessment, disease transmission, disease control, maternal transmission, calves, hygiene, cattle manure, waste disposal, bovine diarrhea virus, disease prevalence, Johne's disease, hazard analysis and critical control point, human heath risks.

Wells, Scott J.; Wagner, Bruce A. Herd-level risk factors for infection with Mycobacterium paratuberculosis in US dairies and association between familiarity of the herd manager with the disease or prior diagnosis of the disease in that herd and use of preventive measures. Journal of the American Veterinary Medical Association. May 1, 2000; 216 (9): 1450-1457. ISSN: 0003-1488
NAL Call No.: 41.8 Am3
Descriptors: herd infection status, management practices, knowledge of herd manager, Johne’s disease, population bases cross-sectional study, 1,004 US dairy operations, questionnaires, blood samples, antibody status, commercial ELISA for testing, multivariable logistic regression analyses, factors associated with infection, some recommendations.

Wentink, G. H.; Frankena, K.; Bosch, J. C.; Vandehoek, J. E. D.; van den Berg, Th. Prevention of disease transmission by semen in cattle. Livestock Production Science. Feb., 2000; 62 (3): 207-220. ISSN: 0301-6226
NAL Call No.: SF1.L5
Descriptors: semen production, bulls, disease surveillance, EU-Directive 88/407 prescribes monitoring of bulls in AI stations, screening for many diseases including Mycobacterium avium ssp paratuberculosis, Johne’s disease, programs.

Whist, S. K.; Storset, A. K.; Larsen, H. J. S. The use of interleukin-2 receptor expression as a marker of cell-mediated immunity in goats experimentally infected with Mycobacterium avium ssp. paratuberculosis. Veterinary Immunology and Immunopathology. March 15, 2000; 73 (3-4): 207-218. ISSN: 0165-2427
NAL Call No.: SF757.2.V38
Descriptors: whole blood, method and technique refinement, cell-mediated immune response to paratuberculosis, experimentally infected animals, quantification of interleukin-2 receptor (IL-2R) expression, activated lymphocytes, in vitro stimulation with Mycobacterium avium ssp. Paratuberculosis derived purified protein derivative (PPDp).

Whitlock, R.H.; Wells, S.J.; Sweeney, R.W.; Van Tiem, J. ELISA and fecal culture for paratuberculosis (Johne's disease): sensitivity and specificity of each method. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 387-398. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: The sensitivity and specificity of the ELISA and fecal culture tests for paratuberculosis in dairy cattle are examined. ELISA and fecal culture data from seven dairy herds where both fecal cultures and ELISA testing was done concurrently are included. A cohort of 954 cattle including 697 parturient adults, cultured every 6 months from 10 herds followed over 4 years served as the basis to determine fecal culture sensitivity. The fecal culture technique utilized a 2 g sample with centrifugation and double incubation. Of the 954 cattle cohort of all ages (calf to adult) that were fecal sampled on the first herd visit, 79 were culture positive. An additional 131 animals were detected as culture positive over the next seven tests at 6-month intervals. The sensitivity of fecal culture to detect infected cattle on the first sampling was 38%. Of the 697 parturient cattle cohort, 67 were positive on the first fecal culture, while an additional 91 adult cattle were culture positive over the next seven tests, resulting in a sensitivity of 42% on the first culture of the total animals identified as culture positive. Animals culled from the herds prior to being detected as infected and animals always fecal culture negative with culture positive tissues at slaughter are not included in the calculations. Both groups of infected cattle will lower the apparent sensitivity of fecal culture. Infected dairy herds tested concurrently with both fecal culture and ELISA usually resulted in more than twofold positive animals by culture compared to ELISA. The classification of infected cattle by the extent of shedding of Mycobacterium paratuberculosis in the feces helps define the relative proportion of cattle in each group and therefore the likelihood of detection by the ELISA test. ELISA has a higher sensitivity in animals with a heavier bacterial load, i.e. high shedders (75%) compared to low shedders (15%). Repeated testing of infected herds identifies a higher proportion of low shedders which are more likely to be ELISA negative. Thus, the sensitivity of the ELISA test decreases with repeated herd testing over time, since heavy shedders will be culled first from the herds.
Descriptors: dairy cattle, ELISA, paratuberculosis, diagnosis, evaluation, feces, cell cultures, age, disease prevalence, diagnostic techniques, shedding of Mycobacterium, detection, Mycobacterium paratuberculosis.

Whittington, R. J.; Hope, A. F.; Marshall, D. J.; Taragel, C. A.; Marsh, I. Molecular epidemiology of Mycobacterium avium subsp. paratuberculosis: IS900 restriction fragment length polymorphism and IS1311 polymorphism analyses of isolates from animals and a human in Australia. Journal of Clinical Microbiology. September, 2000; 38 (9): 3240-3248. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: strain distribution and prevalence, 328 isolates, sheep, dairy and beef cattle, goats, alpacas, rhinoceros, humans, Johne’s disease, restriction fragment length polymorphism(RFLP) analysis, genomic DNA, BstEII, 12 IS900 types found, sheep and cattle specific strains, tracing strain dispersion, Australia.

Whittington, R. J.; Reddacliff, L. A.; Marsh, I.; McAllister, S.; Saunders, V. Temporal patterns and quantification of excretion of Mycobacterium avium subsp paratuberculosis in sheep with Johne's disease. Australian Veterinary Journal. Jan., 2000; 78 (1): 34-37. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: Merino sheep, excretion frequency, Johne’s disease, fecal culture for 7 sheep, pen and lab experiments, excretion patterns, possible impact on environmental contamination, multibacillary and paucibacillary cases.

Whittington, R. J.; Fell,S.; Walker, D.; McAllister, S.; Marsh, I.; Sergeant, E.; Taragel, C. A.; Marshall, D. J.; Links, I. J. Use of pooled fecal culture for sensitive and economic detection of Mycobacterium avium subsp. paratuberculosis infection in flocks of sheep. Journal of Clinical Microbiology. July, 2000; 38 (7): 2550-2556. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: sheep, culturing pooled fecal samples, test sensitivity, multibacillary paratuberculosis, with paucibacillary paratuberculosis, compared to serologic and histopathic examinations, 335 farms, test costs, flock testing.

Wildblood, L. A.; Sinclair, M. C.; Stevenson, K.; Jones, D. G. Effects of in vitro infection with mycobacteria on oxidative metabolism of macrophages. Immunology. December, 2000; 101 (Supplement 1): 125. ISSN: 0019-2805 Note: Annual Congress of the British Society for Immunology, Harrogate, UK, December 05-08, 2000
NAL Call No.: 448.3 Im6 Suppl.
Descriptors: Mycobacterium avium ssp. paratuberculosis, pathogen, Mycobacterium smegmatis, effects on superoxide.

Wraight, M.D.; McNeil, J.; Beggs, D.S.; Greenall, R.K.; Humphris, T.B.; Irwin, R.J.; Jagoe, S.P.; Jemmeson, A.; Morgan, W.F.; Brightling, P.; Anderson, G.A.; Mansell, P.D. Compliance of Victorian dairy farmers with current calf rearing recommendations for control of Johne's disease. Vet Microbiol. Amsterdam, The Netherlands : Elsevier Science B.V. Dec 20, 2000. v. 77 (3/4) p. 429-442. ISSN: 0378-1135. Note: In the special issue: Paratuberculosis (Johne's Disease) / edited by R. Chiodini. Paper presented at a colloquium held February 14-18, 1999, Melbourne, Australia.
NAL Call No.: SF601.V44
Abstract:: Questionnaires were posted to 800 randomly selected registered Victorian dairy farmers in 1996. Five hundred and thirty-four responses were received and analysed. Johne's disease (JD) had been diagnosed on the farm of 13.2% of respondents in the last 5 years. JD was rated second only to neonatal diarrhoea in importance as a disease of calves, even though other diseases occurred more frequently. However, there was a low level of compliance with JD control recommendations by the respondents. There was no significant difference in the number of JD control recommendations adopted by farmers between the three major Victorian regions. There was a significant difference in compliance between farms having had a diagnosed case of JD and those that had not. Although there is awareness among dairy farmers of the importance of JD, there appears to be a poor implementation of measures by farmers to prevent the spread of the disease. Current JD control recommendations and the method of information transfer to Victorian dairy farms should be reassessed to ensure that dairy heifers are reared with minimal risk of transmission of JD.
Descriptors: dairy cattle, calves, Johne's disease, Mycobacterium paratuberculosis, dairy farms, farmers' attitudes, animal rearing-techniques, disease control meausres, diagnosis, neonatal diarrhea,geographical variation, incidence, diffusion of information, Victoria, Australia.

Return to Contents


1999

Burrells, C.; Clarke, C.J.; Colston, A.; Kay, J.M.; Porter, J.; Little, D.; Sharp, J.M. Interferon-gamma and interleukin-2 release by lymphocytes derived from the blood, mesenteric lymph nodes and intestines of normal sheep and those affected with paratuberculosis (Johne's disease). Vet Immunol Immunopathol. Amsterdam : Elsevier. May 1999. v. 68 (2/4) p. 139-148. ISSN: 0165-2427
NAL call no: SF757.2.V38
Descriptors: sheep, paratuberculosis, interferon, interleukin-2, lymphocytes, lymph-nodes. intestines, cytokines, Mycobacterium paratuberculosis, lesions, major histocompatibility complex, cd4+-lymphocytes, Mycobacterium avium subsp. paratuberculosis.

Balci, A. Tulay; Wilbey, R. Andrew. Determination of acid phosphatase activity in heat treated milks by the Fluorophos Test System. International Journal of Dairy Technology. May, 1999; 52 (2): 56-58. ISSN: 1364-727X
NAL Call No.: SF221.I58
Descriptors: Fluorophos Test System(R), measurement of acid phosphatase, fruit juices and milk, enhance the destruction of Mycobacterium paratuberculosis.

Bannantine, John P.; Stabel, Judith R. Identification of Mycobacterium paratuberculosis antigens present within infected macrophages. Molecular Biology of the Cell. Nov., 1999; 10 (SUPPL. ): 181a. ISSN: 1059-1524 Note: 39th Annual Meeting of the American Society for Cell Biology, Washington, D.C., USA, December 11-15, 1999.
NAL Call No.: QH604.C452
Descriptors: white cells, macrophages, isolation and identification of intracellar bacteria, Johne’s diseases.

Cobb, Alison J.; Frothingham, Richard. The GroES antigens of Mycobacterium avium and Mycobacterium paratuberculosis. Veterinary Microbiology. June 1, 1999; 67 (1): 31-35. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: similarities and differences between species, possible vaccine agent.

Dei, R.; Tortoli, E.; Bartoloni, A.; Simonetti, M. T.; Lillini, E. HPLC does not differentiate Mycobacterium paratuberculosis from Mycobacterium avium. Veterinary Microbiology. March 12, 1999; 65 (3) 209-213. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: testing of isolates, potential detection method, no significant differences.

Dotta, U.; Guglielmino, R.; Cagnasso, A.; D' Angelo, A.; Prato, S.; Bosso, M. Effects of subclinical bovine paratuberculosis on in-vitro polymorphonuclear neutrophil migration. Journal of Comparative Pathology. Nov., 1999; 121 (4): 399-403. ISSN: 0021-9975
NAL Call No.: 41.8 J82
Descriptors: white blood cells, neutrophils, subclinical infection, blood picture.

Driemeier, David; Farias, Cruz Claudio Estevao; Pereira, Gomes Marcos Jose; Corbellini, Luis Gustavo; Loretti, Alexandre Paulino; Colodel, Edson Moleta. Clinical and pathological aspects of bovine paratuberculosis in Rio Grande do Sul, southern Brazil. Pesquisa Veterinaria Brasileira. July-Dec., 1999; 19 (3-4): 109-115. ISSN: 0100-736X Note: In Portuguese with English and Portuguese summaries.
NAL Call No.: SF756.37.B7 P5
Descriptors: dairy herd, clinical signs, cattle, necropsy findings described, Mycobacterium paratuberculosis cultured in Herrold's medium enriched with mycobactin, many tissues cultured.

El Zaatari, Fouad A. K.; Naser, Saleh A.; Hulten, Kristina; Burch, Paula; Graham, David Y. Characterization of Mycobacterium paratuberculosis p36 antigen and its seroreactivities in Crohn's disease. Current Microbiology. Aug., 1999; 39 (2): 115-119. ISSN: 0343-8651
NAL Call No.: QR1.C78
Descriptors: possible zoonotic relationships between Johne’s and Crohn’s, immunoblotting technique, reactivity of human sera from patients with Crohn’s indicates Mycobacteria may be involved.

Ellingson, Jay L. E.; Stabel, Judith R. Species-specific genetic identification of Mycobacterium paratuberculosis. Official Gazette of the United States Patent and Trademark Office Patents. [e-file] Nov. 16, 1999; 1228 (3): No pagination. ISSN: 0098-1133
NAL Call No.: T223.A21
Abstract: An M. paratuberculosis gene referred to as hspX provides a useful target region for the construction of suitable probes and primers that are species-specific for distinguishing M. paratuberculosis from related mycobacteria in a test sample. M. paratuberculosis is the causative agent of Johne's disease and has been isolated from human patients with Crohn's disease.
Descriptors: hspX gene, possible species specific probes and primers, strain differentiation, Johne’s disease agent, Crohn’s disease.

Englund, Stina; Ballagi, Pordany, Andras; Bolske, Goran; Johansson, Karl Erik. Single PCR and nested PCR with a mimic molecule for detection of Mycobacterium avium subsp. paratuberculosis. Diagnostic Microbiology and Infectious Disease. March, 1999; 33 (3) 163-171.

ISSN: 0732-8893
Descriptors: detection method, nested PCR based on IS900 plus an internal control molecule, to confirm growth, bovine tissues, primary bacterial cultures, considered a useful screening tool.

Feola, R. P.; Collins, M. T.; Czuprynski, C. J. Hormonal modulation of phagocytosis and intracellular growth of Mycobacterium avium ss. paratuberculosis in bovine peripheral blood monocytes. Microbial Pathogenesis. Jan., 1999; 26 (1) 1-11. ISSN: 0882-4010
NAL Call No.: QR175.M53
Descriptors: growth hormone, prolactin, vitamin D3, luteinizing hormone, oxytocin, hormone effects on phagocytosis and intracellular survival, bovine peripheral blood monocytes, intracellular bacillary growth.

Freeman, Roger; Magee, John; Barratt, Anne; Wheeler, Janice; Steward, Michael; Lee, Maureen; Piggott, Nigel; Grobusch, Martin P. Rapid immunochromatographic assay for diagnosis of tuberculosis: Antibodies detected may not be specific. Journal of Clinical Microbiology. June, 1999; 37 (6): 2111-2112. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: Mycobacterium africanum, Mycobacterium avium, Mycobacterium bovis, Mycobacterium chelonei, Mycobacterium fortuitum, Mycobacterium kansasii, Mycobacterium leprae, Mycobacterium marinum, Mycobacterium microti, Mycobacterium paratuberculosis, Mycobacterium smegmatis, Mycobacterium tuberculosis, Mycobacterium vaccae, 38 kilodalton antigen.

Gasteiner, J.; Wenzl, H.; Fuchs, K.; Jark, U.; Baumgartner, W. Serological cross-sectional study of paratuberculosis in cattle in Austria. Journal of Veterinary Medicine Series B. Sept., 1999; 46 (7): 457-466. ISSN: 0931-1793
NAL Call No.: 41.8 Z52
Descriptors: 11,028 cattle, 2757 farms, prevalence of serum antibodies, epidemiological study, ELISA (Allied Monitors), 6 year old Holstein Frisian cattle, various regional differences, Austria.

Gilot, Philippe; Coetsier, C. Specificity of the 34-kilodalton immunodominant protein of Mycobacterium avium subsp. paratuberculosis (and reply). Clinical and Diagnostic Laboratory Immunology. Jan., 1999; 6 (1) 146-148. ISSN: 1071-412X
Descriptors: bacterial protein, specificity.

Grant, I. R.; Ball, H. J.; Rowe, M. T. Effect of higher pasteurization temperatures, and longer holding times at 72degreeC, on the inactivation of Mycobacterium paratuberculosis in milk. Letters in Applied Microbiology. June, 1999; 28 (6): 461-465. ISSN: 0266-8254
NAL Call No.: QR1.L47
Descriptors: raw milk, inoculated with 3 strains of Mycobacterium paratuberculosis, NCTC 8578, B2 and DVL 943 various heat treatments, survivability.

Greig, Alastair; Stevenson, Karen; Henderson, Dennis; Perez, Valentin; Hughes, Valerie; Pavlik, Ivo; Hines, Murray E. II; McKendrick, Iain; Sharp, J. Michael. Epidemiological study of paratuberculosis in wild rabbits in Scotland. Journal of Clinical Microbiology. June, 1999; 37 (6): 1746-1751. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: prevalence, 22 farms, rabbits as vectors, cattle and rabbit disease interactions, molecular genetic typing looking for strain differences, interspecies transmission, epidemiology, wildlife a reservoirs and vectors.

Gyimesi, Zoltan S.; Stalis, Ilse H.; Miller, Janice M.; Thoen, Charles O. Detection of Mycobacterium avium subspecies avium in formalin-fixed, paraffin-embedded tissues of captive exotic birds using polymerase chain reaction. Journal of Zoo and Wildlife Medicine. Sept., 1999; 30 (3): 348-353. ISSN: 1042-7260
NAL Call No.: SF601 J6
Descriptors: methods, techniques, Mycobacterium avium ssp. avium, Mycobacterium avium ssp. paratuberculosis, avian tuberculosis, diagnostic study, formalin fixed, paraffin embedded archival avian tissues, testing by polymerase chain reaction (PCR), reliability, diagnostic value of test.

Hajtos, Istvan; Glavits, Robert; Malik, Galal. Paratuberculosis in Northern Hungarian sheep flocks. Magyar Allatorvosok Lapja. July, 1999; 121 (7): 383-390. ISSN: 0025-004X Note: In Hungarian with English and Hungarian summaries.
NAL Call No.: 41.8 V644
Descriptors: Hungarian Merino sheep, 5 flocks, occurrence of Johne’s disease, clinical and on the spot examinations, clinical signs, histology findings, ileum, mesenterial lymph nodes, smear samples of ileal mucosa, M. avium subsp. paratuberculosis, etiology, pathology.

Harris, N. Beth; Feng, Zhengyu; Liu, Xiaofei; Cirillo, Suat L. G.; Cirillo, Jeffrey D.; Barletta, Raul G. Development of a transposon mutagenesis system for Mycobacterium avium subsp. paratuberculosis. FEMS Microbiology Letters. June 1, 1999; 175 (1): 21 26. ISSN: 0378-1097
NAL Call No.: QR1.F44
Descriptors: methods to introduce DNA into bacteria, transformation and phage infection, first transposon mutagenesis system, conditionally replicating mycobacteriophage phAE94, insertion sites, 5620 insertion mutants.

Harris, N. B.; Liu, X.; Cirillo, J. D.; Barletta, R. G. Transposon mutagenesis of Mycobacterium paratuberculosis. Abstracts of the General Meeting of the American Society for Microbiology. 1999; 99: 650. ISSN: 1060-2011 Note: 99th General Meeting of the American Society for Microbiology, Chicago, Illinois, USA, May 30-June 3, 1999
NAL Call No.: QR1.A5
Descriptors: Mycobacterium paratuberculosis, Tn5367 transposon, bacteriophage mediated delivery, aph gene mutation.

Hermon, Taylor J.; Cheng, J.; Bull, T. Mycobacterium avium subsp. paratuberculosis in milk: An animal and human pathogen. Journal of Microbiological Methods. Nov., 1999; 38 (3): 217.

ISSN: 0167-7012 Note: European Meeting on Molecular Diagnostics, Scheveningen, The Hague, Netherlands, October 13-16, 1999
NAL Call No.: QR65.J68
Descriptors: milk, dairy products, zoonotic disease, food contaminant, description of biology, issues and concerns.

Higgins, R. Infections of uncertain zoonotic origin. Medecin Veterinaire du Quebec. 1999; 29 (1): 29-35. ISSN: 0225-9591 Note: In French.
NAL Call No.: SF602.M8
Descriptors: dogs, humans, pigs, various diseases including, Mycobacterium paratuberculosis.

Hubbard, James; Surawicz, Christina M. Etiological role of Mycobacterium in Crohn's disease: An assessment of the literature. Digestive Diseases. 1999; 17 (1): 6-13. ISSN: 0257-2753
Descriptors: Mycobacterium chelonae, Mycobacterium paratuberculosis, etiological role, pathogens, humans, possible zoonotic disease.

Johnson, Ifearulundu Yvette; Kaneene, John B. Distribution and environmental risk factors for paratuberculosis in dairy cattle herds in Michigan. American Journal of Veterinary Research. May, 1999; 60 (5): 589-596. ISSN: 0002-9645
NAL Call No.: 41.8 Am3A
Descriptors: 3,886 dairy cattle tested, herds, soil risk factors, epidemiology of infection, pH, iron content, lime addition, pastures, exercise lots, questionnaire on management practices, productivity levels, Michigan.

Johnson, Ifearulundu Yvette; Kaneene, John B.; Lloyd, James W. Herd-level economic analysis of the impact of paratuberculosis on dairy herds. Journal of the American Veterinary Medical Association. March 15, 1999; 214 (6) 822-825. ISSN: 0003-1488
NAL Call No.: 41.8 Am3
Descriptors: herd level analysis; economic losses; dairy cattle; herds; cross-sectional study design; sample population-A multistage stratified random sample of 121 dairy herds; questionnaires were filled out regarding management practices, herd productivity, labor use, expenditures; blood sampling; Michigan.

Marsh, I.; Whittington R.; Cousins, D. PCR-restriction endonuclease analysis for identification and strain typing of Mycobacterium avium subsp. paratuberculosis and Mycobacterium avium subsp. avium based on polymorphisms in IS1311. Molecular and Cellular Probes. April, 1999; 13 (2): 115-126. ISSN: 0890-8508
NAL Call No.: RB43.7.M63
Descriptors: cattle, sheep, DNA, Mycobacterium avium, IS1311 gene, IS900 gene, Mycobacterium avium avium, Mycobacterium avium ssp. paratuberculosis, possible diagnostic agent, restriction endonuclease analysis products interpretation.

McDonald, W. L.; Ridge, S. E.; Hope, A. F.; Condron, R. J. Evaluation of diagnostic tests for Johne's disease in young cattle. Australian Veterinary Journal. Feb., 1999; 77 (2): 113-119. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: development of immune responses, calves, oral dosing for experimental infection, natural infection, evaluation of potential diagnostic tests, testing fecal shedding, Johne’s disease, difficulties in diagnosis.

Moreira, Ana Rita; Paolicchi, Fernando; Morsella, Claudia; Zumarraga, Martin; Cataldi, Angel; Fabiana, Bigi; Alicia, Alito; Piet, Overduin; van Soolingen, Dick; Maria, Isabel Romano. Distribution of IS900 restriction fragment length polymorphism types among animal Mycobacterium avium subsp. paratuberculosis isolates from Argentina and Europe. Veterinary Microbiology. Dec., 1999; 70 (3-4): 251-259. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: cattle and deer isolates, 61 isolates, 4 different patterns, BstII digests of genomic DNA, patterns described, Argentina.

Mulder, Michelle A.; Zappe, Harold; Steyn, Lafras M. The Mycobacterium tuberculosis katG promoter region contains a novel upstream activator. Microbiology Reading. Sept., 1999; 145 (9): 2507-2518. ISSN: 1350-0872
NAL Call No.: QR1.J64
Descriptors: ascorbic acid, analysis of the katG promoter, upstream activator containing pJCuc, E. coli- Mycobacterium shuttle plasmid construction and utilization, luciferase reporter gene expression, reporter gene, Mycobacterium tuberculosis.

Murray, Alan; Gheorghiu, Marin; Gicquel, Brigitte. Promoter of M. paratuberculosis and its use for the expression of immunogenic sequences. Official Gazette of the United States Patent and Trademark Office Patents. [e-file] Oct. 19, 1999; 1227 (3): No pagination. ISSN: 0098-1133
NAL Call No.: T223.A21
Abstract: The invention relates to a nucleotide sequence which is present at a position adjacent to the 5' end of the reverse sequence complementary to the open reading frame coding for a potential transposase contained in the insertion element IS900 in Mycobacterium paratuberculosis. The nucleotide sequence has promoter functions and contains important signals for the regulation of transcription and translation. The invention also relates to methods for cloning and expressing heterologous proteins using such regulatory sequences, to vectors and transformed host cells containing these sequences, and to immunogenic compositions prepared by expression of nucleotide sequences placed under control of these regulatory sequences.
Descriptors: bacterial genetics, promoter functions, regulation of transcription and translation.

Naser, S.; Fenster, W.; Romero, C.; Schwartz, D.; Campbell, D.; Piromalli, C.; Shafran, I. In vitro evaluation of anti-tuberculosis drugs against Mycobacterium avium ss. paratuberculosis for treatment of Crohn's disease. Gastroenterology. April, 1999; 116 (4 PART 2): A783. ISSN: 0016-5085 Note: Digestive Disease Week and the 100th Annual Meeting of the American Gastroenterological Association, Orlando, Florida, USA, May 16-19, 1999
NAL Call No.: RC799.G37
Descriptors: Mycobacterium avium ssp. paratuberculosis, susceptibility to antibiotics, clarithromycin, ethambutol, isoniazid, kanamycin, pyrazinamide, rifampicin, streptomycin.

Naser, Saleh; Shafran, Ira; El Zaatari, Fouad. Mycobacterium avium subsp. paratuberculosis in Crohn's disease is serologically positive. Clinical and Diagnostic Laboratory Immunology. March, 1999; 6 (2) 282. ISSN: 1071-412X
Descriptors: human, Mycobacterium avium ssp paratuberculosis, Mycobacterium bovis, detection.

Ott, Stephen L.; Wells, Scott J.; Wagner, Bruce A. Herd-level economic losses associated with Johne's disease on US dairy operations. Preventive Veterinary Medicine. June 11, 1999; 40 (3-4): 179-192. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: USDA National Animal Health Monitoring System's (NAHMS), dairy cattle study, economic losses, Mycobacterium avium ssp paratuberculosis, high prevalence herds, milk reductions, culling cows, losses of $ 200-250 million annually.

Pavlik, Ivo; Horvathova, Alica; Dvorska, Lenka; Bartl, Jiri; Svastova, Petra; du Maine, Robin; Rychlik, Ivan. Standardisation of restriction fragment length polymorphism analysis for Mycobacterium avium subspecies paratuberculosis. Journal of Microbiological Methods. Oct., 1999; 38 (1-2): 155-167. ISSN: 0167-7012
NAL Call No.: QR65.J68
Descriptors: DNA, 1008 strains, digestion with PstI and BstII, hybridized with standard IS900 probe, DNA fingerprints, GelCompar, 13 fragment length polymorphisms.

Puyang, Xiaoling; Lee, Karen; Pawlichuk, Corey; Kunimoto, Dennis Y. IS1626, a new IS900-related Mycobacterium avium insertion sequence. Microbiology Reading. Nov., 1999; 145 (11): 3163-3168. ISSN: 1350-0872
NAL Call No.: QR1.J64
Nucleotide sequence: AF071067-: GenBank, amino acid nucleotide sequence.
Descriptors: bacterial identifying genetics, high-stringency hybridization with the pMB22/S12 probe from IS900 of Mycobacterium paratuberculosis, 3 clones,

Rauzier, Jean; Gormley, Eamonn; Gutierrez, M. Cristina; Kassa, Kelembho Eric; Sandall, Laurie J.; Dupont, Chris; Gicquel, Brigitte; Murray, Alan. A novel polymorphic genetic locus in members of the Mycobacterium tuberculosis complex. Microbiology Reading. July, 1999; 145 (7): 1695-1701. ISSN: 1350-0872
NAL Call No.: QR1.J64
Descriptors: PAN promoter as a DNA probe, strain differential between wild-type Mycobacterium bovis and the vaccine strain Mycobacterium bovis BCG, genetic basis, similarity of PAN region,. The Shine-Dalgarno sequence and the 10 and 35 promoter regions are conserved between the different species, strain markers.

Reichel, Michael P.; Kittelberger, Reinhold; Penrose, Mary E.; Meynell, Robyn M.; Cousins, Debby; Ellis, Trevor; Mutharia, Lucy M.; Sugden, Edward A.; Johns, Andrea H.; de Lisle, Geoffrey W. Comparison of serological tests and faecal culture for the detection of Mycobacterium avium subsp. paratuberculosis infection in cattle and analysis of the antigens involved. Veterinary Microbiology. April 1, 1999; 66 (2) 135-150. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: cattle, 341 sera samples,106 fecal samples, assay evaluation, ELISA, complement fixation test, detection assay, comparison study.

Sinclair, M. C.; Wildblood, L. A.; Stevenson, K.; Jones, D. G. Cytokine mRNA production in ovine alveolar macrophages infected with mycobacteria. Immunology. Dec., 1999; 98 (suppl. 1): 52. ISSN: 0019-2805 Note: Joint Congress of the British Society for Immunology and the British Society for Allergy & Clinical Immunology., Harrogate, England, UK, November 30-December 03, 1999
NAL Call No.: 448.3 Im6 Suppl.
Descriptors: infection with Mycobacterium avium ssp. paratuberculosis, cytokines.

Sinclair, M. C.; Wildblood, L. A.; Stevenson, K.; Beard, P.; Sharp, J. M.; Hopkins, J.; Jones, D. G. The initial T-cell and cytokine profile of lambs experimentally infected with mycobacteria. Immunology. Dec., 1999; 98 (suppl. 1): 52. ISSN: 0019-2805 Note: Joint Congress of the British Society for Immunology and the British Society for Allergy & Clinical Immunology., Harrogate, England, UK, November 30-December 03, 1999
NAL Call No.: 448.3 Im6 Suppl.
Descriptors: sheep, lambs, infection, cytokines, white cell profiles, experimental infection.

Suenaga, Kensuke; Yokoyama, Yuichi; Nishimori, Isao; Sano, Shuichi; Morita, Masanori; Okazaki, Kazuichi; Onishi, Saburo. Serum antibodies to Mycobacterium paratuberculosis in patients with Crohn's disease. Digestive Diseases and Sciences. June, 1999; 44 (6): 1202-1207. ISSN: 0163-2116
NAL Call No.: 448.8 Am324
Descriptors: immunology, humans with Crohn’s disease, serum antibodies, IgG, IgA, IgM, ELISA assay on sera, unique response to immune response to MAP in patients with Crohn’s.

Valentin, Weigand Peter; Goethe, Ralph. Pathogenesis of Mycobacterium avium subspecies paratuberculosis infections in ruminants: Still more questions than answers. Microbes and Infection. Nov., 1999; 1 (13): 1121-1127. ISSN: 1286-4579 Note: A review.
NAL Call No.: QR180 M53
Descriptors: Johne’s disease, pathogenesis, chronic enteritis of ruminants, biology of infection and host interaction are unknown.

Waters, W. R.; Stabel, J. R.; Sacco, R. E.; Harp, J. A.; Pesch, B. A.; Wannemuehler, M. J. Antigen-specific B-cell unresponsiveness induced by chronic Mycobacterium avium subsp. paratuberculosis infection of cattle. Infection and Immunity. April, 1999; 67 (4) 1593-1598.

ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: cattle, Johne’s disease, description of progression of disease from subclinical to clinical states, immunology associated with progression, cell proliferation assay, flow cytometry, peripheral blood lymphocyte responses, B cells, antigen stimulation.

Whittington, R. J.; Reddacliff, L.; Marsh, I.; Saunders, V. Detection of Mycobacterium avium subsp paratuberculosis in formalin-fixed paraffin-embedded intestinal tissue by IS900 polymerase chain reaction. Australian Veterinary Journal. June, 1999; 77 (6): 392-397. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: evaluation, comparison study, DNA extraction methods, formalin-fixed, paraffin-embedded tissues, detection of Mycobacterium avium ssp paratuberculosis by IS900 PCR, disease confirmation, ruminants, experimental laboratory study, three DNA extraction methods used.

Whittington, R. J.; Marsh, I.; McAllister, S.; Turner, M. J.; Marshall, D. J.; Fraser, C. A. Evaluation of modified BACTEC 12B radiometric medium and solid media for culture of Mycobacterium avium subsp. paratuberculosis from sheep. Journal of Clinical Microbiology. April, 1999; 37 (4) 1077-1083. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: diagnosis, evaluate the culture of M. avium ssp. paratuberculosis, sheep, modified BACTEC 12B radiometric medium, sensitivity of culture, histopathology, evaluate a range of solid media.

Williams, Stephanie L.; Harris, N. Beth; Barletta, Raul G. Development of a firefly luciferase-based assay for determining antimicrobial susceptibility of Mycobacterium avium subsp. paratuberculosis. Journal of Clinical Microbiology. Feb., 1999; 37 (2) 304-309. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: evaluation of antimicrobial agents, M. paratuberculosis, firefly luciferase-based assay, determining drug susceptibilities, amikacin, clarithromycin, ethambutol, isoniazid, kanamycin, rifabutin, D-cycloserine, suggested drug therapy combinations.

Zhao, Ben Yang; Czuprynski, Charles J.; Collins, Michael T. Intracellular fate of Mycobacterium avium subspecies paratuberculosis in monocytes from normal and infected, interferon-responsive cows as determined by a radiometric method. Canadian Journal of Veterinary Research. Jan., 1999; 63 (1) 56-61. ISSN: 0830-9000 Note: In English with English and French summaries.
NAL Call No.: SF601.C24
Descriptors: comparison study, bovine monocytes, normal and infected cows, strong Th1-like cellular immune response to ingest and inhibit the intracellular growth, radiometric (BACTEC) culture, standard plate counting, microscopic counting of acid-fast stained monocyte monolayers.

Zimmer, K.; Drager, K.G.; Klawonn, W.; Hess, R.G. Contribution to the diagnosis of Johne's disease in cattle. Comparative studies on the validity of Ziehl-Neelsen staining, faecal culture and a commercially available DNA-probe test in detecting Mycobacterium paratuberculosis in faeces from cattle. J Vet Med, Ser-B. Berlin : Blackwell Wissenschafts-Verlag. Mar 1999. v. 46 (2) p. 137-140. ISSN: 0931-1793
NAL call no: 41.8 Z52
Descriptors: cattle, Mycobacterium paratuberculosis, feces, diagnosis, paratuberculosis, experimental infection, diagnostic techniques, asymptomatic infections.

Zimpernik, I.; Awad, Masalmeh M.; Baumgartner, W. M. avium subspecies paratuberculosis strains isolated from ruminants in Austria. Tieraerztliche Umschau. June 1, 1999; 54 (6): 335-338. ISSN: 0049-3864 Note: In German with English and German summaries.
NAL Call No.: 41.8 T445
Descriptors: pathogen survey, intestinal contents, intestines, lymph nodes, cattle, sheep, ruminants, 10 base oligonucleotides, 5 different DNA fingerprints, Austria.

Return to Contents


1998

Bartley, C. B.; Sweeney, M. T.; Plaunt, M. R. Growth and detection of Mycobacteria paratuberculosis in the ESP Culture System II. Abstracts of the General Meeting of the American Society for Microbiology. 1998; 98 507. ISSN: 1060-2011 Note: 98th General Meeting of the American Society for Microbiology, Atlanta, Georgia, USA, May 17-21, 1998.
NAL Call No.: QR1.A5
Descriptors: bacterial culture, methodologies.

Begara, Mcgorum I.; Wildblood, L. A.; Clarke, C. J.; Connor, K. M.; Stevenson, K.; McInnes, C. J.; Sharp, J. M.; Jones, D. G. Early immunopathological events in experimental ovine paratuberculosis. Veterinary Immunology and Immunopathology. May 29, 1998; 63 (3) 265-287. ISSN: 0165-2427
NAL Call No.: SF757.2.V38
Descriptors: sheep, experimental oral infection, less than 2 week old lambs, neonatal, cervine isolate, Mycobacterium avium ssp paratuberculosis, investigation of bacteriological, histopathological and immunological changes up to 8 weeks of age, focal granuloma in Jejunal and ileal Peyer’s patches, CD8+ and CD2+ lymphocyte numbers.

Bewley, J. Controlling Johne's disease in dairy cattle. Journal of Dairy Science. 1998; 81 (SUPPL. 1) 380. ISSN: 0022-0302 Note: Joint Meeting of the American Dairy Science Association and the American Society of Animal Science, Denver, Colorado, USA, July 28-31, 1998
NAL Call No.: SF221 A4
Descriptors: dairy cattle, Mycobacterium paratuberculosis, disease prevention and control, management and husbandry systems.

Billard, Patrick; Dubow, Michael S. Bioluminescence-based assays for detection and characterization of bacteria and chemicals in clinical laboratories. Clinical Biochemistry. Feb., 1998; 31 (1) 1-14. ISSN: 0009-9120
NAL Call No.: RB40.C6
Descriptors: application of bioluminescence, usefulness of bacterial (lux) and eucaryotic (luc) luciferase genes, examples of value as "reporters" of many endpoints, various enteric pathogenic organisms, Mycobacterium avium, Mycobacterium paratuberculosis, Mycobacterium tuberculosis.

Brooks, A. Quality of UK milk to be studied. BMJ. Aug. 22, 1998; 317 (7157): 491. ISSN: 0959-8138
Descriptors: possible link between Mycobacterium paratuberculosis and Crohn's disease, study on microbial content of milk, UK

Bull, T. J.; Tizard, M.; Martin, H.; Millar, D.; Doran, T.; Hermon, Taylor J. The GS element in Mycobacterium avium ss. paratuberculosis: A mycobacterial pathogenicity island. Abstracts of the General Meeting of the American Society for Microbiology. 1998; 98 509. ISSN: 1060-2011. Note: 98th General Meeting of the American Society for Microbiology, Atlanta, Georgia, USA, May 17-21, 1998.
NAL Call No.: QR1.A5
Descriptors: virulence associated gene, GS element.

Burrells, C.; Clarke, C.J.; Colston, A.; Kay, J.M.; Porter, J.; Little, D.; Sharp, J.M. A study of immunological responses of sheep clinically-affected with paratuberculosis (Johne's disease). The relationship of blood, mesenteric lymph node and intestinal lymphocyte responses to gross and microscopic pathology. Vet Immunol Immunopathol. Amsterdam : Elsevier. Dec 11, 1998. v. 66 (3/4) p. 343-358. ISSN: 0165-2427
SF757.2.V38
Descriptors: sheep, paratuberculosis, immune response, blood, lymph nodes, intestines, lymphocytes, pathology, infections, Mycobacterium paratuberculosis, bacterial proteins, feces, polymerase chain reaction, identification, Mycobacterium avium subsp. paratuberculosis. Mycobacterium avium subsp. silvaticum, Johne's disease.

Choy, E.; Whittington, R. J.; Marsh, I.; Marshall, J.; Campbell, M. T. A method for purification and characterisation of Mycobacterium avium subsp. paratuberculosis from the intestinal mucosa of sheep with Johne's disease. Veterinary Microbiology. Nov., 1998; 64 (1) 51-60. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: methodology, purification, MAP, sheep intestinal mucosa, multibacillary Johne's disease, restriction fragment length polymorphism (RFLP) analysis, epidemiology.

Coetsier, Christophe; Havaux, Xavier; Mattelard, Francois; Sadatte, Sanaa; Cormont, Francoise; Buergelt, Klaus; Limbourg, Bernard; Latinne, Dominique; Bazin, Herve; Denef, Jean Francois; Cocito, Carlo. Detection of mycobacterium avium subsp. paratuberculosis in infected tissues by new species-specific immunohistological procedures. Clinical and Diagnostic Laboratory Immunology. July, 1998; 5 (4) 446-451. ISSN: 1071-412X
Descriptors: preparation of polyclonal and monoclonal antibodies, a362 recombinant polypeptide with B-cell epitopes, immunoglobins for histopathological diagnosis, Johne's disease, more sensitive than Ziehl-Neelsen staining.

Ellingson, J. L. E.; Stabel, J. R.; Bishai, W. R.; Frothingham, R.; Miller, J. M. Evaluation of the repeatability and accuracy of a polymerase chain reaction method for identification of strains of the Mycobacterium avium complex. Abstracts of the General Meeting of the American Society for Microbiology. 1998; 98 360. ISSN: 1060-2011 Note: 98th General Meeting of the American Society for Microbiology, Atlanta, Georgia, USA, May 17-21, 1998.
NAL Call No.: QR1.A5
Descriptors: cattle, humans, pigeons, primates, Mycobacterium avium, Mycobacterium intracellulare, Mycobacterium paratuberculosis, diagnosis.

Ellingson, Jay L. E.; Bolin, Carole A.; Stabel, Judith R. Identification of a gene unique to Mycobacterium avium subspecies paratuberculosis and application to diagnosis of paratuberculosis. Molecular and Cellular Probes. June, 1998; 12 (3) 133-142. ISSN: 0890-8508
NAL Call No.: RB43.7.M63
Descriptors: etiology, hspX gene cloned and sequenced, species apecific oligonucleotide synthesized, 5’terminus of mycobacterial recA gene, ovine, bovine and human isolates, Mycobacterium avium ssp avium, M. paratuberculosis, Mycobacterium avium ssp silvaticum, Mycobacterium intracellulare, dioligonucleotide hybridization (dOH) analysis, possible assay method.

Ellis, T. M.; Norris, R. T.; Martin, P. A. J.; Casey, R. H.; Hawkins, C. D. Evidence for freedom from Johne's disease in cattle and goats in Western Australia. Australian Veterinary Journal. Sept., 1998; 76 (9) 630-633. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: epidemiology, cattle, goats, Mycobacterium paratuberculosis, Australia.

Ellis, T. M.; Carson, B. A.; Kalkhoven, M. J.; Martin, P. A. J. Specificity of two absorbed ELISAs for surveys of Mycobacterium paratuberculosis in cattle. Australian Veterinary Journal. July, 1998; 76 (7) 497-499. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: methods, techniques, cattle, ELISA assay, survey of disease levels.

Grant, Irene R. Does Mycobacterium paratuberculosis survive current pasteurization conditions? Applied and Environmental Microbiology. July, 1998; 64 (7) 2760-2761. ISSN: 0099-2240
NAL Call No.: 448.3 Ap5
Descriptors: milk processing, milk products, current pasteurization conditions, bacterial survival.

Grant, Irene R.; Ball, H. J.; Rowe, M. T. Effect of high-temperature, short-time (HTST) pasteurization on milk containing low numbers of Mycobacterium paratuberculosis. Letters in Applied Microbiology. Feb., 1998; 26 (2) 166-170. ISSN: 0266-8254
NAL Call No.: QR1.L47
Descriptors: pasteurization treatment of milk, 72 degreesC for 15s. raw milk spiked with MAP at various levels, cultured, BACTEC Middlebrook 12B radiometric medium, Herrold's egg yolk medium containing mycobactin J, IS900-based PCR, detection of acid-fast survivors, effect of bacterial differing concentrations.

Grant, Irene R.; Ball, Hywel J.; Rowe, Michael T. Isolation of Mycobacterium paratuberculosis from milk by immunomagnetic separation. Applied and Environmental Microbiology. Sept., 1998; 64 (9) 3153-3158. ISSN: 0099-2240
NAL Call No.: 448.3 Ap5
Descriptors: milk, detection techniques, immunomagnetic separation technique, possible rapid detection method.

Gupta, V. K.; Singh, N.; Shankar, H. ELISA for detection of Mycobacterium paratuberculosis antibodies in goats. Indian Journal of Animal Sciences. May, 1998; 68 (5) 462-463. ISSN: 0367-8318
NAL Call No.: 41.8 IN22
Descriptors: goats, Mycobacterium paratuberculosis, diagnosis, antibody testing method, ELISA.

Harboe, Morten; Wiker, Harald G.; Ulvund, Gunni; Lund, Pedersen Bent; Andersen, Ase Bengard; Hewinson, R. Glyn; Nagai, Sadamu. MPB70 and MPB83 as indicators of protein localization in mycobacterial cells. Infection and Immunity. Jan., 1998; 66 (1) 289-296. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: marker proteins, culture media, Mycobacterium bovis BCG, Sauton medium, lysates, and sodium dodecyl sulfatepolyacrylamide gel electrophoresis (SDS-PAGE), ELISA and Western blotting, MPB64 and proteins of the antigen 85 complex, 3 heat shock proteins, DNAK, GroEL, GroES, 2 peaks described.

Higgs, A. R. B.; Hawkins, C. D. Ovine Johne's disease: The risk associated with sheep imported into Western Australia. Australian Veterinary Journal. Aug., 1998; 76 (8) 546-550. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: risk assessment, sheep, importation concerns and screening, stochastic simulation model, surveillance tests, source flocks, serological tests on consigned sheep pre and post transport, Western Australia

Homuth, Matthias; Valentin, Wiegand, Peter; Rohde, M.; Gerlach, Gerald F. Identification and characterization of a novel extracellular ferric reductase from Mycobacterium paratuberculosis. Infection and Immunity. Feb., 1998; 66 (2) 710-716. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: reductase enzyme isolation, mobilizes iron from ferric ammonium citrate, ferritin, and transferrin by reduction of the metal, some properties of the enzyme mentioned, amino acids, bacterial physiology.

Hulten, K.; Karttunen, T. J.; Naser, S. A.; El Zimaity, H. M. T.; Graham, D. Y.; El Zaatari, F. A. K. In situ hybridization technique for the detection of mycobacterial spheroplasts in paraffin embedded tissue sections. Abstracts of the General Meeting of the American Society for Microbiology. 1998; 98 360. ISSN: 1060-2011 Note: 98th General Meeting of the American Society for Microbiology, Atlanta, Georgia, USA, May 17-21, 1998.
NAL Call No.: QR1.A5
Descriptors: diagnosis and detection methods, cattle, tissue assay, cell wall deficient pathogen, Mycobacterium paratuberculosis.

International Embryo Transfer Society. Conclusions of the Research Subcommittee of the International Embryo Transfer Society (IETS) Import/Export Committee. Revue Scientifique et Technique Office International des Epizooties. Dec., 1998; 17 (3) 839. ISSN: 0253-1933
NAL Call No.: SF781.R4
Descriptors: issues of disease transfer, embryos, list of pathogens, cattle, goats, sheep, swine, etc.

Keswani, J.; Frank, J. F. Thermal inactivation of Mycobacterium paratuberculosis in milk. Journal of Food Protection. Aug., 1998; 61 (8) 974-978. ISSN: 0362-028X
NAL Call No.: 44.8 J824
Descriptors: milk, treatment, ultra-high temperature milk treatment, 3 strains, submerged glass capillary tube method, clumped and declumped suspensions.

Mainar, Jaime Raul C.; Vazquez, Boland Jose A. Factors associated with seroprevalence to Mycobacterium paratuberculosis in small-ruminant farms in the Madrid region (Spain). Preventive Veterinary Medicine. March 27, 1998; 34 (4) 317-327. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: sheep, goats, 60 flocks, farm factors and management affecting infection levels, questionnaires, seroprevalence with agar-gel immunodiffusion assay, herd size, foreign breeds and crosses, replacement rate, membership in a professional livestock organization.

Manning, Elizabeth J. B.; Steinberg, Howard; Rossow, Kurt; Ruth, George R.; Collins, Michael T. Epizootic of paratuberculosis in farmed elk. Journal of the American Veterinary Medical Association. Nov. 1, 1998; 213 (9) 1320-1322. ISSN: 0003-1488
NAL Call No.: 41.8 Am3
Descriptors: elk, description of the John’s type disease, diagnostic techniques, production management and disease control suggestions.

May, B.; Fetrow, J.; Kapur, V.; Tune, K. The use of TaqMan as a technique to detect Mycobacterium Paratuberculosis. Abstracts of the General Meeting of the American Society for Microbiology. 1998; 98 181. ISSN: 1060-2011 Note: 98th General Meeting of the American Society for Microbiology, Atlanta, Georgia, USA, May 17-21, 1998.
NAL Call No.: QR1.A5
Descriptors: diagnosis and detection methods, Mycobacterium paratuberculosis.

Naser, Saleh A.; Gillespie, Robert F.; Naser, Najih A.; El Zaatari, Foaud A. K. Effect of IS900 gene of Mycobacterium paratuberculosis on Mycobacterium smegmatis. Current Microbiology. Dec., 1998; 37 (6) 373-379. ISSN: 0343-8651
NAL Call No.: QR1.C78
Descriptors: IS900 gene and/or its encoding products, involvement in mycobactin dependency, possible explanation for the slow growth rate, M. paratuberculosis.

Rahn, K.; Shin, S.; Wilson, J.; Johnson, R. P.; Alves, D.; McNab, B.; Lachowski, W.; Odumeru, J.; Spika, J. Milk as a potential source of human exposure to Mycobacterium paratuberculosis. Abstracts of the General Meeting of the American Society for Microbiology. 1998; 98 504. ISSN: 1060-2011 Note: 98th General Meeting of the American Society for Microbiology, Atlanta, Georgia, USA, May 17-21, 1998.
NAL Call No.: QR1.A5
Descriptors: milk, human health risks, zoonotic potential of Mycobacterium.

Silbaq, Fauzi S.; Cho, Sang Nae; Cole, Stewart T.; Brennan, Patrick J. Characterization of a 34-kilodalton protein of Mycobacterium leprae that is isologous to the immunodominant 34-kilodalton antigen of Mycobacterium paratuberculosis. Infection and Immunity. Nov., 1998; 66 (11) 5576-5579. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: gene homology, proteins, description of some characteristics.

Stabel, J. R.; Goff, J. P.; Ackermann, Mark R. Dietary calcium modulates Mycobacterium paratuberculosis infection in beige mice. Veterinary Immunology and Immunopathology. Dec. 11, 1998; 66 (3-4) 377-390. ISSN: 0165-2427
NAL Call No.: SF757.2.V38
Descriptors: mouse model, laboratory experiment, differing levels of dietary calcium and effects on infection persistence, 0.02% Ca, 0.15% Ca, 0.45% Ca, 1.0% Ca.

Stabel, J. R. Johne's disease: A hidden threat. Journal of Dairy Science. Jan., 1998; 81 (1) 283-288. ISSN: 0022-0302
NAL Call No.: 44.8 J822
Descriptors: cattle, discussion of the signs and symptoms of the disease, difficulties of diagnosis, possible zoonotic agent in Crohn’s disease, assay concerns, food born illness, dairy products.

Stabel, J. R.; Steadham, E. Survival of intracellular Mycobacterium paratuberculosis after pasteurization of raw milk. Journal of Dairy Science. 1998; 81 (SUPPL. 1) 42. ISSN: 0022-0302 Note: Joint Meeting of the American Dairy Science Association and the American Society of Animal Science, Denver, Colorado, USA, July 28-31, 1998.
NAL Call No.: SF221 A4
Descriptors: cattle, milk, intracellular survival.

Stabel, J. R. Temporal Mycobacterium paratuberculosis infection in T-cell receptor deficient mice. FASEB Journal. March 17, 1998; 12 (4) A569. ISSN: 0892-6638 Note: Annual Meeting of the Professional Research Scientists on Experimental Biology 98, Part 1, San Francisco, California, USA, April 18-22, 1998.
NAL Call No.: QH301.F3
Descriptors: molecular genetic, C57BL/6 mouse model, T cell receptor deficient host, Mycobacterium, strains 19698 and Ben, infection, pathogenesis.

Sung, Nackmoon; Collins, Michael T. Thermal tolerance of Mycobacterium paratuberculosis. Applied and Environmental Microbiology. March, 1998; 64 (3) 999-1005. ISSN: 0099-2240
NAL Call No.: 448.3 Ap5
Descriptors: heat tolerance; human and bovine strains Dominic, Ben, BO45, ATCC 19698; in vitro; 4 temperatures: 62, 65, 68, and 71degree C; thermal death curves, clumped and singe cells, cell concentrations of clinical M. paratuberculosis strains in milk were 228.8, 47.8, and 21.8 s, respectively, Z value (the temperature required for the decimal reduction time to traverse 1 log cycle).

Sweeney, Raymond W.; Jones, Douglas E.; Habecker, Perry; Scott, Phillip. Interferon-gamma and interleukin 4 gene expression in cows infected with Mycobacterium paratuberculosis. American Journal of Veterinary Research. July, 1998; 59 (7) 842-847. ISSN: 0002-9645
NAL Call No.: 41.8 Am3A
Descriptors: cattle, clinical progression factors, cytokine gene expression in affected tissues, Holstein cows, post slaughter sampling of ileum, cecal lympth nodes, reverse transcriptase-competitive polymerase chain reaction assay for mRNA expression of interferon-gamma (IFN-gamma) and interleukin 4.

Tizard, Mark; Bull, Tim; Millar, Douglas; Doran, Tim; Martin, Helene; Sumar, Nazira; Ford, Jon; Hermon, Taylor John. A low G+C content genetic island in Mycobacterium avium subsp. paratuberculosis and M. avium subsp. silvaticum with homologous genes in Mycobacterium tuberculosis. Microbiology Reading. Dec., 1998; 144 (12) 3413-3423. ISSN: 1350-0872
NAL Call No.: QR1.J64
Descriptors: gene specificity, detection, differential analysis, enteric pathogens, characterization.

Vannuffel, P.; Coetsier, C.; Bouyer, M.; Philippe, M.; Gala, J. L. P34 and F57 based-multiplex PCR assay for discrimination between tuberculous and nontuberculous mycobacteria. Abstracts of the Interscience Conference on Antimicrobial Agents and Chemotherapy. 1998; 38: 158. Note: 38th Interscience Conference on Antimicrobial Agents and Chemotherapy, San Diego, California, USA, September 24-27, 1998
Descriptors: assay technique, humans, Mycobacterium avium, Mycobacterium bovis, Mycobacterium paratuberculosis, Mycobacterium-tuberculosis, F57 and P34 analysis antigenic proteins.

Whittington, R.; Marsh, I.; Choy, E.; Cousins, D. Polymorphisms in IS1311, an insertion sequence common to Mycobacterium avium and M. avium subsp. paratuberculosis, can be used to distinguish between and within these species. Molecular and Cellular Probes. Dec., 1998; 12 (6) 349-358 ISSN: 0890-8508
NAL Call No.: RB43.7.M63
Descriptors: IS1311 insertion sequence, use as a probe, sheep, cattle strains, species evolution.

Whittington, R. J.; Marsh, I; Turner, M. J.; McAllister, S.; Choy, E.; Eamens, G. J.; Marshall, D. J.; Ottaway, S. Rapid detection of Mycobacterium paratuberculosis in clinical samples from ruminants and in spiked environmental samples by modified BACTEC 12B radiometric culture and direct confirmation by IS900 PCR. Journal of Clinical Microbiology. March, 1998; 36 (3) 701-707. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: cattle, sheep, goats, radiometric culture medium BACTEC 12B with PANTA PLUS, mycobactin J, and egg yolk; detection of Mycobacterium paratuberculosis; feces; mesenteric lymph nodes; intestinal walls; cattle; sheep; goats, IS900 PCR in the primary cultures, methodology, spiked soil and pasture samples, sensitivity, Herrold's egg yolk medium, PCR.

Return to Contents


1997

Alzuherri, H. M.; Little, D.; Clarke, C. J. Altered intestinal macrophage phenotype in ovine paratuberculosis. Research in Veterinary Science. Sept.-Oct., 1997; 63 (2) 139-143. ISSN: 0034-5288
NAL Call No.: 41.8 R312
Descriptors: Scottish back-faced ewes, sheep, Johne’s disease, immunohistological studies, intestinal macrophages, diseased sheep expressed MHC class II, LFA-1 and CR4 antigens weakly, comparison with normal tissues, reverse transcriptase-polymerase chain reaction analysis, MHC class II MRNA, intestinal whole tissue samples, no significant difference between control and diseased groups, Mycobacterium avium paratuberculosis.

Bannantine, John P.; Barletta, Raul G.; Thoen, Charles O.; Andrews, Robert E. Jr. Identification of Mycobacterium paratuberculosis gene expression signals. Microbiology Reading. 1997; 143 (3) 921-928. ISSN: 1350-0872
NAL Call No.: QR1.J64
Descriptors: DNA library constructed in the transcriptional-translational fusion vector pYUB76, eight clones were sequenced and characterized further.

Bassey, Effiong O. E.; Collins, Michael T. Study of T-lymphocyte subsets to healthy and Mycobacterium avium subsp. paratuberculosis-infected cattle. Infection and Immunity. 1997; 65 (11) 4869-4872. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: cattle, Johne’s disease, host immune defenses, T-lymphocyte contribution to defense, lymphoproliferation and gamma interferon (IFN-gamma) production was measured in response to phytohemagglutinin (PHA) and an M. avium antigen preparation (A-PPD), correlation between proliferation and IFN-gamma production in response to A-PPD but not to PHA.

Begara, Mcgorum Isabel M.; Wildblood, Louise A.; Jones, Douglas G. Early immune events following experimental infection of lambs with Mycobacterium avium subspecies paratuberculosis. Biochemical Society Transactions. 1997; 25 (2) 279S. ISSN: 0300-5127

Note: 660th Meeting of the Biochemical Society, Joint Congress with the British Society for Immunology, Harrogate, England, UK, December 10-13, 1996.
NAL Call No.: QD415.A1B58
Descriptors: sheep, lambs, progression of the disease in the immune system, experimental infection study, Mycobacterium avium ssp. paratuberculosis.

Clarke, C. J. Paratuberculosis and molecular biology. Veterinary Journal. 1997; 153 (3) 245-247. ISSN: 1090-0233
NAL Call No.: SF601 V484
Descriptors: biochemistry, molecular, genetics, immunity, pathology, Mycobacterium avium ssp. paratuberculosis.

Collins, Michael T. Mycobacterium paratuberculosis: A potential food-borne pathogen? Journal of Dairy Science. Dec., 1997; 80 (12) 3445-3448. ISSN: 0022-0302
NAL Call No.: 44.8 J822
Descriptors: Johne’s disease, raw bovine based products, human health risks, review of literature on thermal resistance of bacteria.

Cook, W. E.; Cornish, T. E.; Shideler, S.; Lasley, B.; Collins, M. T. Radiometric culture of Mycobacterium avium paratuberculosis from the feces of tule elk. Journal of Wildlife Diseases. 1997; 33 (3) 635-637. ISSN: 0090-3558
NAL Call No.: 41.9 W64B
Descriptors: tule elk, Cervus elaphus nannodes, Point Reyes National Seashore, CA, detection/incidence of Mycobacterium avium ssp paratuberculosis, fecal samples, cultured on modified BACTEC 12B radiometric medium, positive results in 2 groups of elk, non-invasive technique for wildlife Mycobacterium monitoring.

Davies, H. L. Ovine Johne's disease. Australian Veterinary Journal. Nov., 1997; 75 (11) 799. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: sheep, Mycobacterium avium paratuberculosis, human health risks, food contaminant, Australlia.

De Lisle, G. W. Can Johne's disease be eradicated from sheep in Australia? Australian Veterinary Journal. 1997; 75 (5) 336. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: sheep disease, Johne’s, Mycobacterium paratuberculosis, control and eradication.

Doran, Tim; Tizard, Mark; Millar, Douglas; Ford, Jon; Sumar, Nazira; Loughlin, Mark; Hermon, Taylor John. IS900 targets translation initiation signals in Mycobacterium avium subsp. paratuberculosis to facilitate expression of its hed gene. Microbiology Reading. 1997; 143 (2) 547-552. ISSN: 1350-0872
NAL Call No.: QR1.J64
Descriptors: microbial genetics, IS900 insertion sites, unique targeting process.

Durham, P. J. K.; Paine, G. D. Serological survey for antibodies to infectious agents in beef cattle in northern South Australia. Australian Veterinary Journal. 1997; 75 (2) 139-140. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: cattle, disease incidence, survey, blood sera, pathogens, Chlamydia, Coxiella burnetii Mycobacterium paratuberculosis, Australia.

El Zaatari, Fouad A. K.; Naser, Saleh A.; Graham, David Y. Characterization of a specific Mycobacterium paratuberculosis recombinant clone expressing 35,000-molecular-weight antigen and reactivity with sera from animals with clinical and subclinical Johne's disease. Journal of Clinical Microbiology. 1997; 35 (7) 1794-1799. ISSN: 0095-1137
NAL Call No.: QR46.J6
Descriptors: cattle, sheep, goats, recombinant clone expressing a 35,000 molecular weight Mycobacterium paratuberculosis antigen (p35 antigen), constructed expression library of M. paratuberculosis in Escherichia coli, immunoblotting, possible diagnostic method for serodiagnosis of all ages of animals.

Ellingson, J. L. E.; Bolin, C. A.; Stabel, J. R. Identification of a new genetic element unique to Mycobacterium paratuberculosis and application to diagnosis of paratuberculosis. Abstracts of the General Meeting of the American Society for Microbiology. 1997; 97 (0) 550. ISSN: 1060-2011 Note: 97th General Meeting of the American Society for Microbiology, Miami Beach, Florida, USA, May 4-8, 1997.
NAL Call No.: QR1.A5
Descriptors: genetics, specificity, cattle strain, possible diagnostic test, Mycobacterium avium, Mycobacterium intracellulare, Mycobacterium paratuberculosis.

Feizabadi, M. M.; Robertson, I. D.; Hope, A.; Cousins, D. V.; Hampson, D. J. Differentiation of Australian isolates of Mycobacterium paratuberculosis using pulsed-field gel electrophoresis. Australian Veterinary Journal. Dec., 1997; 75 (12) 887-889. ISSN: 0005-0423
NAL Call No.: 41.8 Au72
Descriptors: strain variations, pulsed field gel electrophoresis, typing technique, 35 Australian isolates and 1 UK reference strain, banding patterns from endonuclease digested material, 2 groupings, strain transmission studies, Australia.

Feizabadi, Mohammad M.; Robertson, Ian D.; Cousins, Debby V.; Dawson, David J.; Hampson, David J. Use of multilocus enzyme electrophoresis to examine genetic relationships amongst isolates of Mycobacterium intracellulare and related species. Microbiology Reading. 1997; 143 (4) 1461-1469. ISSN: 1350-0872
NAL Call No.: QR1.J64
Descriptors: diversity and distribution of Mycobacterium spp., Australia, genetic relationships at 17 enzyme loci amongst a collection of reference strains and isolates, initially identified M. intracellulare ,'X' mycobacteria, M. scrofulaceum, M. avium, M. avium ssp. Paratuberculosis,

difficulties in differentiation.

Felix, J. L.; Huang, L.; Walsh, A. F.; Safranek, B. W.; Naser, N. A.; Naser, S. A. PCR detection of the IS900 gene is Mycobacterium avium strains isolated from HIV patients. Abstracts of the General Meeting of the American Society for Microbiology. 1997; 97 (0) 553. ISSN: 1060-2011

Note: 97th General Meeting of the American Society for Microbiology, Miami Beach, Florida, USA, May 4-8, 1997.
NAL Call No.: QR1.A5
Descriptors: PCR, genetics, IS900 gene detection methods, humans.

Francois, B.; Krishnamoorthy, R.; Elion, J. Comparative study of Mycobacterium paratuberculosis strains isolated from Crohn's disease and Johne's disease using restriction fragment length polymorphism and arbitrarily primed polymerase chain reaction. Epidemiology and Infection. 1997; 118 (3) 227-233. ISSN: 0950-2688
NAL Call No.: RA651.A1E74
Descriptors: pathogenicity mechanisms study, Crohn’s disease, Johne’s disease, human, sheep and cattle strains, DNA, RFLP, IS900, arbitrarily primed polymerase chain reaction (AP-PCR).

Gormley, Eamonn; Sandall, Laurie; Hong, Cai; Lawton, David; Murray, Alan. Identification and differentiation of mycobacteria using the P-AN promoter sequence from Mycobacterium paratuberculosis as a DNA probe. FEMS Microbiology Letters. 1997; 147 (1) 63-68. ISSN: 0378-1097
NAL Call No.: QR1.F44
Descriptors: 165 bp DNA fragment containing the P AN promoter from Mycobacterium paratuberculosis, probe in Southern blots, detection of related sequences in other species of mycobacteria.

Gupta, V. K.; Singh, Nem; Singh, S. V.; Shankar, Hari. Adoption of M. paratuberculosis (isolated from goat and sheep) into liquid medium from solid medium. Indian Veterinary Medical Journal. 1997; 21 (1) 14-17. ISSN: 0250-5266
Descriptors: goat and sheep isolates, Herrold's egg yolk medium with mycobactin J, modified Watson & Raid liquid medium, aeration requirement, 2 pH levels, limited success in liquid medium.

Gwozdz, J. M.; Reichel, M. P.; Murray, A.; Manktelow, W.; West, D. M.; Thompson, K. G. Detection of Mycobacterium avium subsp. paratuberculosis in ovine tissues and blood by the polymerase chain reaction. Veterinary Microbiology. 1997; 57 (2-3) 233-244. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: 12 ewes sheep, polymerase chain reaction (PCR) test, DNA extractions, blood, liver, ileocecal lymph node, ileum, assay comparison study, serological tests: complement fixation test (CFT); gel diffusion test (AGID); two enzyme-linked immunosorbent assays (ELISA).

Holsinger, V. H.; Rajkowski, K. T.; Stabel, J. R. Milk pasteurisation and safety: A brief history and update. Revue Scientifique et Technique Office International des Epizooties. Aug., 1997; 16 (2) 441-451. ISSN: 0253-1933 Note: In English with English; French; and Spanish summaries.
NAL Call No.: SF781.R4
Descriptors: food safety, milk processing, efficiency of current pasteurization methods in regard to pathogens, Mycobacteria paratuberculosis, Listeria monocytogenes, Escherichia coli, O257:H7. Bacillus cereus endospores.

Huang, L.; Naser, N. A.; Naser, S. A. Cloning of a Mycobacterium paratuberculosis 32K-encoding gene: A possible fibronectin attachment protein-encoding gene. Abstracts of the General Meeting of the American Society for Microbiology. 1997; 97 (0) 561. ISSN: 1060-2011

Note: 97th General Meeting of the American Society for Microbiology, Miami Beach, Florida, USA, May 4-8, 1997.
NAL Call No.: QR1.A5
Descriptors: genetics, cloning of specific genes, fibronectin, proteins.

Hveem, Eli. Importation of cattle: An evaluation of the risk of the importation and spread of paratuberculosis infections. Norsk Veterinaertidsskrift. 1997; 109 (11) 669-671. ISSN: 0332-5741 Note: In Norwegian.
Descriptors: epidemiology, cattle, disease introduction risks, Mycobacterium paratuberculosis.

Hwang, Eui Kyung; Jean, Young Hwa; Son, Hyun Joo; Moon, Oun Kyong; Kim, Jae Hoon; Bae, You Chan; Park, Jung Won; Choi, Sang Ho; Yoon, Sang Bo. A case report of Johne's disease in a Korean native cow. RDA Journal of Veterinary Science. Dec., 1997; 39 (2) 33-41. ISSN: 1226-5675 Note: In Korean with Korean and English summaries.
NAL Call No.: SF604 R33
Descriptors: Korean native cow, case study, Mycobacterium avium ssp paratuberculosis, necropsy, classical clinical signs, gross and histopathologic lesions, results of the acid-fast tissue staining, immunohistochemical staining and electron microscopy.

Jark, Uwe; Ringena, Ibeling; Franz, Beate; Gerlach, Gerald F.; Beyerbach, Martin; Franz, Burkart. Development of an ELISA technique for serodiagnosis of bovine paratuberculosis. Veterinary Microbiology. 1997; 57 (2-3) 189-198. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: Mycobacterium avium ssp. paratuberculosis isolate, large-scale culture, efficient preparation of a lipoarabinomannan-containing antigen was developed and standardized, ileocaecal lymphnodes cultured to isolate viable M. paratuberculosis ELISA.

Johnson, Ifearulundu Yvette J.; Kaneene, John B. Relationship between soil types and Mycobacterium paratuberculosis. Journal of the American Veterinary Medical Association. 1997; 210 (12) 1735-1740. ISSN: 0003-1488
NAL Call No.: 41.8 Am3
Descriptors: cattle, soils-Mycobacterium relationship.

Klausen, J.; Perez, V.; Giese, S. B.; Garcia, Marin J. F.; Ahrens, P. Immunological detection of sheep experimentally infected with strains of Mycobacterium avium subspecies containing insertion sequence IS901/IS902 and a 40 kDa protein. Veterinary Microbiology. 1997; 57 (2-3) 181-187. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: monoclonal antibody, 40 kDa protein, M. avium strains (IS901/IS902 positive), developed a blocking ELISA, experimentally infected sheep sera, diagnostic value, indirect ELISA, AGID and blocking ELISA compared.

Mason, O.; Rowe, M. T.; Ball, H. J. Is Mycobacterium paratuberculosis a possible agent in Crohn's disease? Implications for the dairy industry. Milchwissenschaft. 1997; 52 (6) 311-316. ISSN: 0026-3788 Note: In English with summaries in English and German.
NAL Call No.: 44.8 M5933
Descriptors: dairy products, milk, ice cream, cheese, human health risks, Mycobacterium paratuberculosis contamined milk, possible zoonotic agent, potential impacts on dairy industry, recommendations for future research.

McDowell, R. M.; McElvaine, M. D. Long-term sequelae to foodborne disease. Revue Scientifique et Technique Office International des Epizooties. Aug., 1997; 16 (2) 337-341. ISSN: 0253-1933 Note: In English with English; French; and Spanish summaries.
NAL Call No.: SF781.R4
Descriptors: possible relationship between Mycobacterium paratuberculosis and Crohn’s disease, descriptions of syndromes, epidemiology, economic information, reduction in food borne diseases.

Morgan, K. L.; Cetinkaya, B.; Egan, K. Johne's and Crohn's: Inflammatory bowel diseases with a similar aetiology? In Society for veterinary epidemiology and preventive medicine. Edited by Goodall, E. A.; Thrusfield, M. V. Society for Veterinary Epidemiology and Preventive Medicine, England, UK; 1997, 47-56. ISBN: 0948073292 Note: From a meeting held in Chester, England, UK, April 9-11, 1997.
Descriptors: intestinal diseases, humans, cattle, sheep, Mycobacteriaum paratuberculosis, possible cause of Crohn’s disease.

Mulder, M. A.; Zappe, H.; Steyn, L. M. Characterization of the Mycobacterium tuberculosis katG promoter and regulation of expression. Abstracts of the General Meeting of the American Society for Microbiology. 1997; 97 (0) 566. ISSN: 1060-2011 Note: 97th General Meeting of the American Society for Microbiology, Miami Beach, Florida, USA, May 4-8, 1997.
NAL Call No.: QR1.A5
Descriptors: genetics, promoter, physiology, bacterial genetics, Escherichia coli, Mycobacterium paratuberculosis, Mycobacterium smegmatis, Mycobacterium tuberculosis.

Mutharia, L. M.; Moreno, W.; Raymond, M. Analysis of culture filtrate and cell wall-associated antigens of Mycobacterium paratuberculosis with monoclonal antibodies. Infection and Immunity. 1997; 65 (2) 387-394. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: specific antigens, release of antigens and distribubion of specific epitopes in Mybacterium species, immunoblot analysis, monoclonial antibodies, Mab B6A.

Obasanjo, Iyabo O.; Grohn, Yrjo T.; Mohammed, Hussni O. Firm factors associated with the presence of Mycobacterium paratuberculosis infection in dairy herds on the New York State Paratuberculosis Control Program. Preventive Veterinary Medicine. Oct., 1997; 32 (3-4) 243-251. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: extensive questionnaire, data from 33 herds, New York State Paratuberculosis Control Program, farm factors MAP infection in dairy herds, 31 continuous and 67 categorical risk factors, univariable logistic regression, 10 factors: the type of farm operation (commercial/registered or both); earlier diagnosis of the disease before entering the control program; number of clinical cases in the previous year; clinical cases farm or purchased animals; typical signs in clinical cases; fecal exposure of calves 0-6 weeks of age; contact with adult animal feces due to shared cleaning equipment, spreading feces on fields that contaminated forage; treatment and handling of those suspected of having Johne’s; frequency of barn cleaning, New York State.

Onet, George E. Current paratuberculosis diagnosis in cattle. Large Animal Practice. July-Aug., 1997; 18 (4) 18-22. ISSN: 1092-7603
NAL Call No.: SF601 B6
Descriptors: diagnosis, methods, cattle, Mycobacteria, issues, concerns regarding testing methods.

Pell, Alice N. Manure and microbes: Public and animal health problem? Journal of Dairy Science. Oct., 1997; 80 (10) 2673-2681. ISSN: 0022-0302
NAL Call No.: 44.8 J822
Descriptors: microbial contamination in the environment, waste management, human health risks,

control and remediation, pathogen contaminants, Cryptosporidium parvum, Giardia spp., Listeria monocytogenes, Escherichia coli O157:H7, Salmonella spp., and Mycobacterium paratuberculosis, enteric viruses, clinical symptoms, control methods, recommendations for control.

Perez, V.; Tellechea, J.; Badiola, J. J.; Gutierrez, M.; Garcia, Martin J. F. Relation between serologic response and pathologic findings in sheep with naturally acquired paratuberculosis. American Journal of Veterinary Research. 1997; 58 (8) 799-803. ISSN: 0002-9645
NAL Call No.: 41.8 Am3A
Descriptors: 134 adult sheep, culled for illness, tested blood, sera testing, correlations between lesions and serologic response, sheep, natural infection, intestinal lesions, Mycobacterium paratuberculosis, efficacy of agar gel immunodiffusion (AGID) and ELISA as diagnostic tests.

Rainsford, K. D. Emerging research in gastrointestinal diseases. In Cell injury and protection in the gastrointestinal tract: From basic sciences to clinical perspectives 1996. Edited by Mozsik, G.; Nagy, L.; Par, A.; Rainsford, K. D. : Eds Kluwer Academic Publishers, AZ Dordrecht, Netherlands; Kluwer Academic Publishers, MA 1997; 1-7. ISBN: 0792387201 Note: Fourth International Symposium, Pecs, Hungary, October 8-11, 1995.
Descriptors: Helicobacter pylori, Mycobacterium paratuberculosis, research.

Reichelderfer, M.; Cherney, T. M.; Chicks, D. S.; Harms, B. A.; Manning, E. B.; Collins, M. T. Seroprevalence of mycobacterium paratuberculosis (Mptb) antibodies in inflammatory bowel disease (IBD) patients and two populations at risk of exposure to this pathogen. Gastroenterology. 1997; 112 (4 SUPPL. ) A1069. ISSN: 0016-5085 Note: Digestive Disease Week and the 97th Annual Meeting of the American Gastroenterological Association, Washington, D.C., USA, May 11-14, 1997.
NAL Call No.: RC799.G37
Descriptors: possible zoonotic bacteria, pathology.

Rowe, Michael T.; Fearon, Anna M.; Johnston, Donald E.; Early, John. Dairy research in the Food Science Division, Belfast. International Journal of Dairy Technology. May, 1997; 50 (2) 61-63. ISSN: 1364-727X
NAL Call No.: SF221.I58
Descriptors: dairy related, heat resistance of Mycobacterium paratuberculosis, Escherichia coli, raw milk, shelf life of pasteurized milk, high pressure processing of dairy products, Ireland

Scheibl, Peter; Gerlach, Gerald F. Differentiation of Mycobacterium paratuberculosis isolates by rDNA-spacer analysis and random amplified polymorphic DNA patterns. Veterinary Microbiology. 1997; 57 (2-3) 151-158. ISSN: 0378-1135
NAL Call No.: SF601.V44
Descriptors: strain identification, methods, molecular techniques, 16 isolates, nucleotide sequence analysis of rDNA-spacer, random amplified polymorphic DNA (RAPD) analysis using decamer primers with GC contents of 60 to 70%, evaluation of assay, potential use as a method to differentiate strains.

Secott, T. E.; Ohme, A. M.; Barton, K. S.; Rommel, F. A. Comparison of Mycobacterium paratuberculosis detection methods: Standard culture vs. accelerated culture. Abstracts of the General Meeting of the American Society for Microbiology. 1997; 97 (0) 550-551. ISSN: 1060-2011 Note: 97th General Meeting of the American Society for Microbiology, Miami Beach, Florida, USA, May 4-8, 1997.
NAL Call No.: QR1.A5
Descriptors: detection methods comparison, cattle strains.

Stabel, J. R.; Steadham, E.; Bolin, C. A. Heat inactivation of Mycobacterium paratuberculosis in raw milk by the holder test-tube method and laboratory-scale pasteurizer method. Abstracts of the General Meeting of the American Society for Microbiology. 1997; 97 (0) 183. ISSN: 1060-2011 Note: 97th General Meeting of the American Society for Microbiology, Miami Beach, Florida, USA, May 4-8, 1997.
NAL Call No.: QR1.A5
Descriptors: raw milk, in vitro study, heat tolerance, survival after various pasteurization treatments.

Stabel, J. R.; Steadham, E. M.; Bolin, C. A. Heat inactivation of Mycobacterium paratuberculosis in raw milk: Are current pasteurization conditions effective? Applied and Environmental Microbiology. Dec., 1997; 63 (12) 4975-4977. ISSN: 0099-2240
NAL Call No.: 448.3 Ap5
Descriptors: current commercial pasteurization methods, contaminated raw milk, in vitro experiments, pasteurization regimes, viability, 65, 72, 74, or 76degree C, 0 to 30 min, 72 degrees, was effective.

Stabel, J. R. Johne's disease: A hidden threat. Journal of Animal Science. 1997; 75 (SUPPL. 1) 48. ISSN: 0021-8812 Note: 89th Annual Meeting of the American Society of Animal Science, Midwestern Section.
NAL Call No.: 49 J82
Descriptors: cattle, Mycobacterium paratuberculosis, Johne's disease, economic impact, animal health protection and safety, possible zoonotic disease.

Staerk, K. D. C.; Frei, Staeheli C.; Frei, P. P.; Pfeiffer, D. U.; Danuser, J.; Audige, L.; Nicolet, J.; Strasser, M.; Gottstein, B.; Kihm, U. Incidence and costs of health problems in Swiss dairy cattle and their calves (1993-1994). Schweizer Archiv fuer Tierheilkunde. 1997; 139 (8) 343-353. ISSN: 0036-7281 Note: In German with German; English; French; and Italian summaries.
NAL Call No.: 41.8 SCH9
Descriptors: dairy cattle; 13 dairy herds; blood and feces collected; pathogenicity; pathogens identified included: Leptospira hardjo, Coxiella burnetii, Mycobacterium paratuberculosis.

Steele, Marina L.; McNab, W. Bruce; Poppe, Case; Griffiths, Mansel W.; Chen, Shu; Degrandis, Stephanie A.; Fruhner, Lynne C.; Larkin, Carolyn A.; Lynch, John A.; Odumeru, Joseph A. Survey of Ontario bulk tank raw milk for food-borne pathogens. Journal of Food Protection. Nov., 1997; 60 (11) 1341-1346. ISSN: 0362-028X
NAL Call No.: 44.8 J824
Descriptors: proportion, raw milk, Listeria monocytogenes, Salmonella spp., Campylobacter spp., and/or verotoxigenic Escherichia coli (VTEC), 1,720 pick ups, food borne pathogens, Ontario, CA.

Stevenson, K.; Sharp, J. M. The contribution of molecular biology to Mycobacterium avium subspecies paratuberculosis research. Veterinary Journal. 1997; 153 (3) 269-286. ISSN: 1090-0233
NAL Call No.: SF601 V484
Descriptors: discussion of research into molecular aspects of the bacteria.

Stitt, D. T.; Sturm, K. M. Preliminary growth requirements of Mycobacterium paratuberculosis in the BBL MGIT mycobacteria growth indicator tube. Abstracts of the General Meeting of the American Society for Microbiology. 1997; 97 (0) 570. ISSN: 1060-2011

Note: 97th General Meeting of the American Society for Microbiology, Miami Beach, Florida, USA, May 4-8, 1997.
NAL Call No.: QR1.A5
Descriptors: methodologies, physiology, growth factors.

Sung, N.; Collins, M. T. Heat resistance of Mycobacterium paratuberculosis. Abstracts of the General Meeting of the American Society for Microbiology. 1997; 97 (0) 443. ISSN: 1060-2011

Note: 97th General Meeting of the American Society for Microbiology, Miami Beach, Florida, USA, May 4-8, 1997.
NAL Call No.: QR1.A5
Descriptors: bacterial characteristics, heat tolerance.

Thorne, J. G.; Hardin, L. E. Estimated prevalence of paratuberculosis in Missouri, USA cattle. Preventive Veterinary Medicine. 1997; 31 (1-2) 51-57. ISSN: 0167-5877
NAL Call No.: SF601.P7
Descriptors: disease incidence, cattle, 89 herds, seroprevalance of Mycobacterium paratuberculosism absorbed ELISA for detection of antibodies.

Valente, C.; Cuteri, V.; Giandomenico, R. Quondam; Gialletti, L.; Franciosini, M. P. Use of an experimental chicks model for paratuberculosis enteritis (Johne's disease). Veterinary Research Paris. 1997; 28 (3) 239-246. ISSN: 0928-4249 Note: In English with summaries in English and French.
NAL Call No.: SF602 A5
Descriptors: animal disease model, conventional chicks immunodepressed by a Cyclophosphamide injection and concurrent inoculation of Infectious Bursal Disease Virus (IBDV), experimental infection, Mycobacterium paratuberculosis, 4 month study, shedding of bacteria, intestinal lesions,

aggregation of macrophages with monocytes and lymphocytes, no diarrhea, possible useful model to study the disease.

Zhao, Benyang; Collins, Michael T.; Czuprynski, Charles J. Effects of gamma interferon and nitric oxide on the interaction of Mycobacterium avium subsp. paratuberculosis with bovine monocytes. Infection and Immunity. 1997; 65 (5) 1761-1766. ISSN: 0019-9567
NAL Call No.: QR1.I57
Descriptors: cattle, while blood cells, recombinant bovine gamma interferon (rIFN-gamma), NO, interaction of M. avium ssp. paratuberculosis.

Return to Contents


1996

Begara, Mcgorum I.; Wildblood, L.; Jones, D. G. Early immune events following experimental infection of lambs with Mycobacterium avium subspecies paratuberculosis. Immunology. 1996; 89 (SUPPL. 1) 65. ISSN: 0019-2805 Note: Joint Congress of the British Society for Immunology and the Biochemical Society, Harrogate, England, UK, December 10-13, 1996.
NAL Call No.: 448.3 Im6 Suppl.
Descriptors: lamb, sheep, immunity.

Clarke, C. J.; Colston, A.; Little, D.; Kay, J.; Alzuherri, H. M.; Sharp, J. M.; Burrells, C. The immune response in paratuberculosis infection of small ruminants. Veterinary Immunology and Immunopathology. 1996; 54 (1-4) 321. ISSN: 0165-2427 Note: Fourth International Veterinary Immunology Symposium, Davis, California, USA, July 1995.
NAL Call No.: SF757.2.V38
Descriptors: goat, sheep, immune system responses.

Grgic, Z.; Vidic, Branka; Lazic, S.; Stojanov, I. Paratuberculosis (Johne's disease). Veterinarski Glasnik. 1996; 50 (7-8) 481-490. ISSN: 0350-2457 Note: In Serbo-Croatian with English and Russian summaries.
NAL Call No.: 41.8 J93
Descriptors: disease description, distribution, diagnostic methods mentioned, prevention and control measures.

Gupta, V. K.; Singh, Nem; Singh, S. V.; Shankar, Hari. Faecal microscopic examination: A tool for diagnosis of Johne's disease in small ruminants. Indian Veterinary Medical Journal. 1996; 20 (3) 213-214. ISSN: 0250-5266
Descriptors: goats, fecal examination, diagnostic methods.

Meylan, Mireille; Rings, D. Michael; Shulaw, William P.; Kowalski, Joseph J.; Bech, Nielsen Steen; Hoffsis, Glen F. Survival of Mycobacterium paratuberculosis and preservation of immunoglobulin G in bovine colostrum under experimental conditions simulating pasteurization. American Journal of Veterinary Research. 1996; 57 (11) 1580-1585. ISSN: 0002-9645
NAL Call No.: 41.8 Am3A
Descriptors: survival of bacteria in pasteurized colostrum, effect on IgG concentration in colostrum, pasteurization temperatures (63 C) for 30 minutes and approximately 20 to 23 C.

cultured in Herrold's egg yolk medium with and without mycobactin J), did not kill all bacteria.

Neutra, Marian R.; Kraehenbuhl, Jean Pierre. Antigen uptake by M cells for effective mucosal vaccines. Edited by Kiyono, H.; Ogra, P. L.; McGhee, J. R. Mucosal vaccines. Academic Press, Inc., CA; Academic Press Ltd., England, UK. 1996, 41-55. ISBN: 0124105807
NAL Call No.: QR185.9 M83M86 1996
Descriptors: various enteric pathogens, Mycobacterium paratuberculosis, Salmonella-spp., Shigella-spp., Vibrio cholerae, Yersinia-spp.

Shome, Rajeswari; Shome, B. R.; Krishnappa, G.; Raghavan, R. Diagnosis of bovine paratuberculosis by crossed immunoelectrofocusing. Indian Veterinary Journal. 1996; 73 (9) 911-913. ISSN: 0019-6479
NAL Call No.: 41.8 IN2
Descriptors: sonicated antigens, M. paratuberculosis, M. phlei and C. renale, electrophoresed against bovine antiparatuberculosis serum in CrIEF with reference to their antigenicity, antigenic sharing and specific diagnosis.

Wards, Barry J. Evaluation of defined media suitable for isolation of auxotrophic mutants of mycobacteria. Journal of Basic Microbiology. 1996; 36 (5) 355-362. ISSN: 0233-111X
NAL Call No.: QR1 Z4
Descriptors: 5 liquids evaluated, solid support matrices added to liquids, Tween 80 inhibitory effect, agar inhibited, Middlebrook 7H9.

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USDA and USDA Sponsored Research


  1. START: 01 Oct 2001  TERM: 30 Sep 2006

    INVESTIGATOR: Cullor, J. S.

    PERFORMING INSTITUTION: Population Health & Reproduction Univ of California (Vet-med) Davis, California 95616

    SUBJECT: The use of micro-colony pcr for detection of Mycobacterium paratuberculosis from bovine manure.

    OBJECTIVES: Our objective is to assess and optimize the PCR confirmation of M. paratuberculosis microcolonies. The primary hypothesis to be tested is that PCR analysis can be performed on micocolonies of M. paratuberculosis appearing between 7-14 days afer spirally plated on Middlebrook agar plates. The use of PCR on micro-colonies will circumvent the problems of sensitivity and PCR inhibition when this technique is used directly on broth cultures, manure or tissues.

    APPROACH: Bovine manure from clinically normal cows will first be spiked with up to 1x10(8) CFU/g of M. paratuberculosis and decontaminated via the standard protocol used by the California Animal Health Food Safety Laboratory (CAHFS, Davis CA). After the decontamination step, teh samples will be spirally plated onto Middlebrooks 7H10 agar plates for micro-colony morphology detection. The spiral plates will be incubated at 37 degrees centigrade and examined weekly for M. paratuberculosis growth. The resulting micro-colonies will be "picked" from the spiral plates and the DNA extracted from them. PCR amplification using an automated LightCycler and M. paratuberculosis specific primers will then be performed with results of a typical 30cycle reaction obtainable within 30 minutes. Primer concentration, MgCl concentration, annealing temperatures and cycle numbers will all be assessed and adjusted for maximum sensitivity and specificity.

    NON-TECHNICAL SUMMARY: Detection of M. paratuberculosis in young cattle continues to be difficult using current tests. In an effort to improve the sensitivity and specificity of PCR for Johne's disease screen assays, we plan to investigate a micro-colony PCR detection method.

    PROJ CONTACT:

    Name: Cullor, J. S. Phone: 559-688-1731 Fax: 559-686-4231 Email: jscullor@ucdavis.edu
    URL: http://www.vmtrc.ucdavis.edu/dfsl/dfsl.html


  2. START: 15 May 2001 TERM: 30 Nov 2001 Grant Yr: 2001

    INVESTIGATOR: Griffin, J. P.

    PERFORMING INSTITUTION: Myco Research Llc  217 Racquette Dr., Suite 6

    SUBJECT: Prophylactic vaccine against Mycobacterium paratuberculosis in cattle.

    OBJECTIVES: Johne's disease, a chronic granulomatous enteritis of cattle is the result of infection with the extremely slow growing bacillus Mycobacterium paratuberculosis. It is estimated that 20-30% of US dairy and cattle herds are infected with this organism with resulting combined losses to the dairy and beef industries estimated to be between $200 million and $1 billion per year. Current vaccine strategies utilizing non-viable mycobacteria have proven to be largely ineffective and are currently permitted in only 3 states. We further hypothesize, based on our extensive experience with murine models of mycobacteria infection, that successful vaccines must incorporate proteins contained within the Culture Filtrate (CFP) extracted from the supernatant of mycobacteria during the log phase of growth. We propose here to vaccinate several small groups of cattle with mixtures of M. paratuberculosis CFP emulsified into adjuvants which have been demonstrated to promote a T helper Type I (THI) immune response: experimentally infect these animals via oral inoculation with a clinical isolate of M. paratuberculosis: and to monitor these animals for the emergence of T cell populations previously associated with protection. Animals will be analyzed for DTH response, T cell production of IFN-g, and circulating memory T cell phenotype expression.

    APPROACH: See Objectives.

    NON-TECHNICAL SUMMARY: We anticipate that a combination of M. paratuberculosis CFP emulsified into a TH1-promoting adjuvant will stimulate a protective T cell response in experimentally infected cattle. This response will be characterized by an emerging, circulating T cell population which produces significant amounts of IFN-y in response to in vitro exposure to CFP and exhibits a shift towards a

    PROJ CONTACT: Name: Griffin, J. P. Phone: 970-224-4957 Fax: 970-224-9564 Email: jpgriffin@mycosresearch.com


  3. START: 01 Dec 2000 TERM: 30 Nov 2003 Grant YR: 2001

    INVESTIGATOR: Schorey, J. S.

    PERFORMING INSTITUTION: Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556

    SUBJECT: Defining novel diagnostic and vaccine targets to combat Johnes disease.

    OBJECTIVES: To define new antigenic proteins of Mycobacterium paratuberculosis which can be used as diagnostic markers and vaccine candidates for the purpose of eliminating this pathogen from cattle. This mycobacterium is the etiological agent of Johnes disease, a common disease in cattle. We will isolate and characterize mycobacterial protein antigens which elicit a B cell and T cell response in M. paratuberculosis infected cattle and test these antigens as potential vaccine candidates using a mouse M. paratuberculosis infection model.

    APPROACH: To use PCR and genetic library screening to clone Mycobacterium paratuberculosis genes which we hypothesize to be immunogenic in infected cattle. The cloned genes will be expressed as recombinant proteins and tested as diagnostic markers for Johnes diseased cattle. Specifically, serum from infected and control cattle will be tested for antibodies to the recombinant proteins by Western blot. We will also measure the T cell proliferative response to these proteins using T cells isolated from infected and control cattle and the ability of the isolated T cells to produce cytokines in response to these recombinant proteins. To determine if these proteins would make useful vaccine candidates, mice will be immunized with one or more of these antigens and then challenged with M. paratuberculosis. A decrease in bacterial load at different times post-infection would indicate a protective response intitiated by the immunization. Additional diagnostic markers and vaccine candidates will be defined by screening a M. paratuberculosis expression library with serum from infected cattle. The recombinant proteins within the expression library which show reactivity with antibodies from infected cattle will be purified and tested in the T cell proliferation and cytokine production assays as described above and as vaccine candidates.

    NON-TECHNICAL SUMMARY: Johnes disease is a chronic intestinal disorder particularly common among dairy cattle and it is estimated that 24% of the dairy herds nationally are infected. By some estimates the cost of Johnes disease to dairy farmers exceeds 1.5 billion a year. This disease is caused by Mycobacterium paratuberculosis, an intracellular pathogen, whose other family members include M. tuberculosis and M. leprae, the causative agents of tuberculosis and leprosy respectively. Infected cattle shed high numbers of M. paratuberculosis through their feces where it can spread to other members of the herd. A major interest to dairy farmers is the development of diagnostic tools and vaccines for Johnes disease. However, we lack the required information on what M. paratuberculosis proteins initiate an immune response in infected cattle and which of these proteins, when used as a vaccine, would protect the calf or cow from Johnes disease. Nevertheless, studies with other pathogenic mycobacteria have identified proteins which produce an immune response in infected animals, including humans. Further, a number of these proteins were shown to protect an animal host from an active mycobacterial disease when used as a vaccine. We have chosen to clone the M. paratuberculosis genes corresponding to these homologous proteins which include GroES, fibronectin attachment protein (FAP), 85abc and the 16-KDa a-crystallin homolog. The proteins corresponding to these genes will be expressed and tested as diagnostic markers to distinguish M. paratuberculosis infected from non-infected cattle. The proteins will also

    PROJ CONTACT:

    Name: Schorey, J. S. Phone: 219-631-3734 Fax: 219-631-7413 Email: schorey.1@nd.edu

     

  4. START: 15 May 2001 TERM: 30 Nov 2002 Grant YR: 2001

    INVESTIGATOR: Crabb, J. H.

    PERFORMING INSTITUTION: IMMUNCELL Corp. 56 Evergreen Dr. Portland, Maine 04103

    SUBJECT: Immunomagnetic separation assay for Mycobacterium paratuberculosis.

    OBJECTIVES: Johne's disease, caused by Mycobacterium paratuberculosis (M. para), is a chronic inflamatory bowel disease of ruminants. Recent literature has fueled an as-yet unresolved debate about whether this organism is also the etiological agent of at least some proportion of Crohn's Disease in humans. Detection of the organism in stool is difficult due to the slow growth and fastidious nature of M. para. hampering many of the studies of its pathogenesis and interfering with eradication efforts in cattle. PCR-based detection of M para is highly specific, due to the presence of a unique sequence (IS900), but extensive sample preparation and PCR inhibitors in stool limit the sensitivity and utility of the method.

    APPROACH: See Objectives.

    NON-TECHNICAL SUMMARY: Current testing for M. paratuberculosis in stool samples requires extensive sample preparation, including disinfection steps that reduce the sensitivity of culture. PCR testing of stool samples is hampered by inhibitors of the reaction present in stool. The proposed IMS sample preparation method would provide increased sample throughput as well as enhanced sensitivity of detection by replacing the harsh sample preparation steps with a gentle, immune capture step to isolate the bacteria prior to culture or PCR.

    PROJ CONTACT:

    Name: Crabb, J. H. Phone: 207-878-2770 Fax: 207-878-2117 Email: jhcrabb@aol.com

     

  5. START: 01 Oct 2000 TERM: 30 Sep 2001 FY: 2001

    INVESTIGATOR: Godden, S. M.; Wells, S. J.; Fetrow, J.; Feirtag, J. M.

    PERFORMING INSTITUTION: Clinical and Population Science, Univ of Minnesota, St Paul, Minnesota 55108

    SUBJECT: Effect of pasteurizing waste milk on health and performance in dairy calves with emphasis on Johne's disease and salmonellosis.

    OBJECTIVES: 1. Describe, in a laboratory setting, the effect of pasteurization on survivability and concentration of Mycobacterium paratuberculosis in whole milk samples artifically inoculated with known concentrations of bacteria. 2. Describe the effect of pasteurization on survivability and concentration of Mycobacterium paratuberculosis in naturally infected waste milk when using an on-farm pasteurization system. 3. Describe the effect of pasteurization of waste milk on morbidity, mortality and treatment rates in calves from birth to three months of age. 4. Describe the effect of pasteurization of waste milk on rate of gain in calves from birth to three months of age. 5. Calculate the economics (cost-benefit) of using an on-farm pasteurization system for feeding pasteurized, as compared to systems feeding raw waste milk or systems feeding commercial milk replacer.

    APPROACH: Stage 1: Laboratory Study: A commercial continuous-flow high temperature short residence time (HTST) pasteurizer will be set up in a laboratory setting. A series of previously commercially pasteurized samples of whole milk will be inoculated with various concentrations of a number of different pathogenic bacteria including M. paratuberculosis. The inoculated milk will be processed through the pasteurizer, which involves heating to 162 degrees F for 15 to 20 seconds. Initial innoculum levels achieved and the number of pathogenic cells surviving heat treatment will be estimated using the appropriate culturing techniques for each pathogen. The information acquired from this study will provide a basis for the farm study. Stage 2: Farm Study: A commercial continuous-flow HTST pasteurization system will be installed on a large dairy farm or heifer grower operation. Immediately after birth, heifer calves will be fed four liters of colostrum from a Johne's ELISA test-negative dam, weighed, placed into an individual calf hutche, and then randomly assigned to either a treatment or control group. Calves in the control group will receive unpasteurized waste milk until weaning. Calves in the treatment group will receive pasteurized waste milk until weaning (eight weeks of age). Information collected for dams will include identification, calving date, parity, calf sex, and calf identification number. Farm personnel will collect and freeze colostrum samples from cows at the time of calving, and separate pre- and post-pasteurized samples of pooled waste milk twice/week. Farm personnel will record all disease events, treatment regimes, and mortality events for study calves up to three months of age. Appropriate samples will be submitted to the Minnesota Veterinary Diagnostic Laboratory to identify causes of morbidity and mortality in study calves. Blood and fecal samples will be collected weekly from all recently calved cows that recently delivered female calves to test for infection with M. paratuberculosis. Fecal samples will be collected from pre-weaned calves for the purpose of culture for detection of shedding of M. paratuberculosis. All health and treatment records will also be collected. Finally, all study calves will be weighed at approximately one, two and three months of age. Data will be analyzed to describe the efficacy of pasteurization on viability of M. Paratuberculosis in both artificially inoculated milk (laboratory setting) and naturally infected milk (farm setting). We will compare the rate of fecal shedding of M. paratuberculosis, and morbidity, mortality, treatment and growth rates, in calves fed pooled pasteurized waste milk as compared to calves fed raw waste milk. Finally, we will construct a partial budget (cost-benefit) analysis of using an on-farm pasteurization system for feeding pooled pasteurized waste milk, as compared to systems feeding raw waste milk or commercial milk replacer.

    NON-TECHNICAL SUMMARY: A) The feeding of raw waste milk to calves is one important method of transmitting Mycobacterium paratuberculosis, the agent causing Johne's disease, as well as other infectious agents which cause diarrhea, pneumonia, septicemia and other common calfhood diseases. The purpose of this study is to investigate the efficacy, practicality and cost-effectiveness of implementing a pasteurization system on a commercial dairy farm.

    PROJ CONTACT:

    Name: Godden, S. M. Phone: 612-625-8177 Fax: 612-625-6241 Email: godde002@tc.umn.edu

     

  6. START: 01 OCT 2000 TERM: 30 SEP 2001 FY: 2001

    INVESTIGATOR: Weiss, D. J.; Abrahamsen, M.; Walcheck, B.

    PERFORMING INSTITUTION: Veterinary Pathobiology, Univ of Minnesota, St Paul, Minnesota 55108

    SUBJECT: Critical components of host immune response in Johne's disease.

    OBJECTIVES: To determine the capacity of M. paratuberculosis-infected calves to mount a specific cellular immune response.

    APPROACH: Our working hypothesis is that susceptibility of calves to persistent M. paratuberculosis-infection results from inherent differences in the capacity of macrophages to present antigen to the immune system or of immune cells to respond to antigens presented by macrophages. We will use an in vivo model in which calves will be infected with M. paratuberculosis organisms. We will sequentially monitor immune responses occurring over 6 months and evaluate the role of CD-4+, CD-8+, and gamma delta T-lymphocytes in the immune response.

    NON-TECHNICAL SUMMARY: Johne's disease, which is caused by infection with Mycobacterium avium subspecies paratuberculosis, has been spreading through U.S. dairy herds and is presently a cause of major economic losses to farmers. This project examines cellular immune mechanisms that determine whether cattle eliminate the infection of become chronically infected.

    PROJ CONTACT:

    Name: Weiss, D. J. Phone: 612-625-9242 Fax: 612-625-5203 Email: weiss005@tc.umn.edu

     

  7. START: 15 Sep 1999 TERM: 30 Sep 2001 FY: 2001 GRANT YR: 1999

    INVESTIGATOR: Reddy, C. C.

    PERFORMING INSTITUTION: Veterinary Science, Pennsylvania State University, 208 Mueller Laboratory, University Park, Pennsylvania 16802

    SUBJECT: The Penn State FY 1999 Milk Safety Research Program.

    OBJECTIVES: The FY 1999 application for Special Research Grant funds in Milk Safety consists of three collaborative projects whose teams include S. J. Knabel, R. Ananthaswaran, B. Jayarao and S. Pillai (Project #1), C. Deb Roy, C. Maddox, R. Roberts and T. Whittam (Project #2), and R. J. Warland and R. O. Hermann (Project #3), respectively. Project #1 will test the destruction of Gram-positive microbes during high-temperature-short time (HTST) pasteurization of milk. Two foodborne pathogens (Listeria monocytogenes and Mycobacterium paratuberculosis), both of potentially large health and economic impact, will be quantified in raw milk samples collected on Pennsylvania farms and after transport to the dairy or cooperative. The objectives include to determine (1) the effect of sublethal heat shock on the destruction of M. paratuberculosis during HTST pasteurization of milk; (2) the effect of sublethal heat shock on the destruction of L. monocytogenes during HTST pasteurization of milk. It is not known whether the current pasteurization processes completely destroy these pathogens. This information is expected to be used to design commercial HTST pasteurization processes for producers, to improve milk safety and dairy profitability. Project #2 will investigate the presence of enterohemorrhagic E. coli (EHEC), such as E. coli type O157:H7, in bulk-tank milk collected on Pennsylvania farms. EHEC are the cause of a serious disease syndrome in humans. Therefore information on the presence or absence of EHEC is of particular interest to producers. Although EHEC will be destroyed by proper pasteurization of milk, the prevalence of this pathogen in raw bulk tank milk is not known. If these strains are prevalent and may survive the manufacture process of certain cheeses or yogurts, then clearly it will be necessary to develop methods to eliminate them. Tests of the ability of EHEC to withstand environmental stresses, such as acidic and alkaline conditions, will be conducted. Treatment with colicins, known antimicrobial compounds, may provide one approach to destroying this pathogen. The objectives include to (1) determine the serotype and EHEC strains in raw milk collected in different geographical regions in Pennsylvania; (2) type the virulence factors by polymerase-chain reaction (PCR), using a battery of primers for a total of 14 virulence genes; (3) assess the ability of EHEC to withstand the challenges of the external environment; (4) investigate the ability of known colicins (of which 24 are available) to control the growth of EHEC strains in milk products. Project #3 will test the feasibility of determining consumer concerns using a standardized phone survey instruments to assess perceptions of the safety of milk, to provide the industry with accurate, detailed information on the beliefs of consumers related to milk and milk product (cheese) safety. The identification of consumers most likely to be concerned could help to focus future educational efforts more effectively.

    APPROACH: Project #1: Use an emersed coil apparatus for HTST treatment to test the thermal inactivation of microorganisms at HTST pasteurization conditions. Plate cultures on special media and determine colony growth for L. monocytogenes and M. paratuberculosis. Conduct data analysis (decimal reduction times) and statistical comparisons of treatments. Project #2: Identify EHEC strains by specialized cultures; determine "O" and "H" serotypes and presence of shiga-like toxins. Determine virulence factors using DNA amplification by multiplex PCR and ribotyping. Assess the ability of EHEC strains to withstand challenges of environment by exposure to acidic and alkaline conditions; determine under growth and starvation conditions. Evaluate temperature and salt challenges. Examine sensitivity to 24 colicins using an overlay plating technique and Pearce Activity tests; conduct pilot tests of ColE2-producing transformants under Cheddar cheese manufacture conditions. Project #3: Construct a pre-test survey instrument with questions based on survey questions previously developed by the investigators and new questions related to milk and cheese consumption to provide important information about concerns related to dairy product-related hazards. Conduct a national survey of 2000 telephone respondents 18 years old or older (2.2% confidence). Use computer assisted telephone survey software to analyze data. Oversample less educated consumers to increase the probability of including adequate numbers in the national telephone survey. Conduct various regression tests to analyze data.

    NON-TECHNICAL SUMMARY: Milk Safety research to be conducted in FY 1999 at the Pennsylvania State University will evaluate new pasteurization methods, use molecular assays to test for pathogenic E. Coli in milk, and determine consumer concerns related to the safety of the milk supply and milk products. The first project will test the destruction by high-temperature-short time (HTST) pasteurization of foodborne pathogens (Listeria monocytogenes and Mycobacterium paratuberculosis) in raw milk. Data will be collected from samples on the farm and during transport to the dairy to answer the question whether the current pasteurization processes completely destroy these pathogens. Other research will employ molecular methods to investigate the presence of enterohemolytic E. coli (EHEC) in bulk tank milk. Information on the presence or absence of EHEC would be of interest to producers as a means of detection that could be used to certify herds. The use of colicin (an antibacterial agent) to eliminate EHEC in food will also be tested. A third project will utilize survey methods to determine consumer concerns about milk safety, in order to provide the dairy industry with accurate detailed information on beliefs related to milk and milk product (cheese) safety. The identification of consumers most likely to be concerned could help to focus educational efforts effectively. Together, these three projects will provide important new information to help reduce microbiological hazards in milk and milk products, and to understand consumer concerns so that education can be appropriately targeted.

    PROGRESS: 1999/09 TO 2001/09 Milk & milk products have been linked with outbreaks involving contamination with deadly pathogen, E. coli. We examined the presence of pathogenic E. coli strains, such as E. coli O157 or any Shiga-like toxin producing E. coli (STEC) that are known to be human pathogens, in raw milk. To determine if the consumers in PA drinking raw milk are at risk, we chose to work with raw milk from 4 dairy farms in PA including an Amish farm. Raw milk was collected and tested for the presence of pathogenic E. coli strains. Diagnosis of pathogenic strains of E. coli from raw milk is complicated by the low number of the pathogenic bacteria in total bacterial counts in raw milk. E. coli present in the milk had to be enriched in selective media to even detect their presence. Rainbow agar and MacConkey Sorbitol agar were used to culture bulk tank (BT) milk with high coliform counts. Other methods were also used to enrich E. coli in BT milk such as enriching the bacteria in Rainbow or Sorbitol MacConkey agar before these colonies were picked. Other media were also examined for enriching the STEC. Total number of raw milk tested in 1 yr was 383. Out of these cultures 93 cultures were found to exhibit growth in the selective media for STEC strains. These were screened for the presence of virulence factors by Polymerase Chain Reaction (PCR). The genes that were tested were Shiga toxin I (stx-I), Shiga toxin-II (stx-II), attaching and effacing gene (eae) and some of the isolates were also tested for hemolysin (hlyA). The presence of Intimin alleles (Int allele) were determined by multiplex PCR. Thirteen isolates were found to carry virulence factors. Shiga toxin genes were present in 10 isolates. The other 3 isolates carried either hemolysin or attaching and effacing gene. Three isolates carried both Shiga toxin genes I and II. There were 4 isolates with beta- Intimin which is characteristic of O157:H7 and its close relatives (O157:NM, O55:H7). The 3 O111 strains exhibited the presence of eae but carried a distinct allele that differs in sequence from the others. The most common pathogenic group of E. coli recovered in this sample are members of EHEC 2, enterohemorrhagic E. coli (EHEC) that typically have beta-Intimin and stx 1 genes. Strains of this group are often recovered from animal sources and cause enteric diseases in calves. Two other EHEC are also found in the sample. The O157:H7 fits the typical formula for the O157:H7 clone that is common in N. America; positive for gamma-Intimin and carrying both stx genes. We evaluated the survival L. monocytogenes and M. avium subsp. paratuberculosis in milk using the HTST protocol. The assay was done using an Immersed coil apparatus. We found the survival rate of heat shocked L. monocytogenes pasteurized at 71.7 degrees C to be 10/10, 7/10, & 1/10 at 15s, 20s & 25s, respectively. About 10 `6' cfu/ml of M. paratuberculosis (with & without heat shock treatment) was subjected to HTST protocol. The survival rate of M. paratuberculosis varied considerably; however, a large % of the samples survived the pasteurization process. The findings suggest that failure in HTST systems could pose a health hazard.

    IMPACT: 1999/09 TO 2001/09 Microbial food safety is an increasing public health concern worldwide. It is estimated that each year in the US there are approximately 76 million food borne illnesses. Nearly 270,000 cases are caused by pathogenic E. coli strains including E. coli O157:H7. Although E. coli usually cause mild to moderate self limiting gastroenteritis, invasive diseases and complications may occur resulting in more severe cases of bloody diarrhea and hemolytic uremic syndrome. While it is known that contaminated raw or undercooked red meat are particularly important in transmitting food-borne E. coli, not much is known about the contamination in raw milk. Since a large population in PA drinks raw milk, investigation was conducted to determine whether the population is at risk of food poisoning because of the presence of pathogenic E. coli strains in raw milk. E. coli was isolated from raw milk and molecular characterization reflected that some of these isolates carried genes that encoded virulence attributes. The results of our study indicated that pathogenic E. coli strains are indeed present in raw milk. It is therefore, suggested that raw milk should be avoided so that pathogenic strains are not consumed. Consumers of raw milk should be informed of the risk of food poisoning by education and extension services.

    PUBLICATIONS: 1999/09 TO 2001/09 No publications reported this period

     

  8. START: 01 JAN 2000 TERM: 30 SEP 2002 FY: 2001

    INVESTIGATOR: Christopher-Hennings, J.; Nelson, E. A.; Epperson, W.; Chase, C. C.; Henning, D.

    PERFORMING INSTITUTION: Veterinary Science, South Dakota State University, Brookings, South Dakota 57007

    SUBJECT: Johne's disease in cattle and buffalo (bison): A South Dakota concern.

    OBJECTIVES: 1. Develop a sensitive, rapid, high-throughput, molecular diagnostic polymerase chain reaction (PCR) technique for the detection and quantitation of Mycobacterium paratuberculosis in dairy and beef cattle, buffalo and products such as colostrum and milk for human consumption. 2. Describe the distribution and quantity of Mycobacterium paratuberculosis in young cattle, which are the primary subclinical carriers of the organism, to identify the tissue site or secretion which most consistently and reliably could be used for Johne's Disease diagnosis.

    APPROACH: Diagnosis of Johne's Disease is difficult since the organism may be shed intermittently in feces and may take 16 weeks to grow in culture. Also, serology may detect less than half the infected animals, since antibodies develop late after infection. Recently, voluntary Johne's Certification Programs have been established using the antibody test in combination with culturing of the organism to attempt eradication of this disease. However, due to poor test sensitivity and prolonged culturing time, this is difficult. As an alternative to culturing the organism or detecting antibodies to M. paratuberculosis, PCR tests which can detect very small amounts of the organisms DNA have been developed. We are currently using a PCR test for the detection Johne's Disease. However, the conventional PCR tests are very laborious, not easily used for quantitation and only a small number of samples can be tested at one time. An automated, rapid, high-throughput PCR test using fluorescent probes called molecular beacons may provide a better diagnostic test. A 96-well plate can be used allowing for more samples to be tested at one time. Also, the system is automated using computer software for fluorescent detection and is not as labor intensive. The ''bacterial load' or quantity can also be evaluated, providing information on which tissue site or secretion contains the highest numbers of bacteria. This would provide information on which specimen would be most useful for submission to the diagnostic laboratory for the detection of the organism. It would also identify animals, which may be shedding large numbers of the bacteria, allowing for better culling decisions. To evaluate this automated PCR procedure, the sensitivity and specificity of the test will be obtained by comparisons with culturing which is considered the gold standard. A study involving 3-week old calves will be performed since these are the primary subclinical carriers of the disease. The calves will be inoculated with M. paratuberculosis, then serum, white blood cells, feces and tissue specimens will be collected and evaluated. This study will determine which specimen contains the highest numbers of M. paratuberculosis and would be the most valuable for submissions for organism identification. Fourteen to 18 month old beef calves will also be evaluated at slaughter. Tissues from these beef calves will be collected and compared to antibody test levels in the herd to determine whether slaughter check testing may be more valuable in the Johne's-free certification program than antibody testing. A third study evaluating fecal specimens from a Johne's positive buffalo herd will be obtained to determine the usefulness of an automated, quantitative PCR procedure in diagnosing Johne's Disease carriers in buffalo. Finally, milk and colostrum samples from a private company in South Dakota will be evaluated by automated PCR to determine the best method of extracting M. paratuberculosis DNA from milk and colostrum and whether automated PCR can be used to screen milk samples for M. paratuberculosis before and after commercial pasteurization.

    NON-TECHNICAL SUMMARY: Diagnosis of Johne's disease is difficult since current serology, culture and PCR techniques are not adequate in identifying subclinical carriers. We propose to develop a sensitive, rapid, high-throughput PCR for detection and quantitation of Mycobacterium paratuberculosis in cattle, buffalo and colostrum and milk products for human consumption and describe the pathogenesis in young cattle.

    PROGRESS: 2001/01 TO 2001/12 Johne's Disease is a chronic wasting disease of ruminants caused by the bacteria Mycobacterium avium subsp. paratuberculosis. Traditional diagnostic methods currently include culture of feces and tissues for the detection of the bacteria and enzyme-linked immunosorbent assays for antibody detection. Since conventional culturing involves a long incubation time (12-16 weeks) and antibodies may not be detectable until late in infection, alternative methods of diagnosis are needed. We recently developed an automated PCR assay using fluorescent probes called molecular beacons. This PCR test was evaluated using 41 bovine fecal samples from the 1999 and 2000 National Veterinary Services Laboratory Proficiency Testing Program. The DNA extraction was performed directly from bovine feces and the PCR was performed in a 96-well plate format on an ABI PRISM 7700 Sequence Detection System. Only 1 of 41 samples was negative by the automated PCR but positive by culture. This sample had low numbers of colony forming units (CFU) (eg. 9-12 CFU). One of 41samples was positive by PCR whereas culture was negative. It is possible this sample may have had bacterial DNA as detected by PCR, but not viable bacteria. The intra and inter-assay variability was also determined as a coefficient of variation of < 2% and < 4%, respectively. Results were quantitated using a standard curve derived from a plasmid containing IS900, with a minimum quantity of 1.7 x 10 -4 pg of DNA being detected, which correlated to 1 to 8 CFU. The automated PCR is currently being used for on-going studies of the pathogenesis of Mycobacterium paratuberculosis in newborn calves and in comparisons of bacterial detection in colostrum, feces and whole blood samples. Additional samples from bison will also be evaluated for the presence and quantitation of Mycobacterium paratuberculosis.

    IMPACT: 2001/01 TO 2001/12 Since Johne's cerification programs are being instituted nationally, a rapid method of detecting Mycobacteriuim paratuberculosis infected animals is needed. The real-time PCR methodology allows for multiple samples to be evaluated and quantitated in a 96-well plate format for detection and pathogenesis studies.

    PUBLICATIONS: 2001/01 TO 2001/12 Fang, Y., Wu, W-H., Pepper, J.L., Larsen, J.L., Marras, S.A.E., Nelson E.A., Epperson, W.B., Christopher-Hennings, J. 2002. Comparison of real-time, quantitative PCR with molecular beacons to nested PCR and culture methods for detection of Mycobacterium avium sbsp. paratuberculosis in bovine fecal samples. J. Clin. Micro. 40:287-291.

    PROJ CONTACT:

    Name: Christopher-Hennings, J. Phone: 605-688-5171 Fax: 605-688-6003
    Email: Jane_Christopher-Hennings@sdstate.edu

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January 23, 2003