Factors affecting the herd level of antibodies against Mycobacterium avium subsp. paratuberculosis--a case-control study.
Fredriksen
B
B
National Veterinary Institute, Oslo, Norway.
Jarp
J
J
D000818:Animals; D000907:Antibodies, Bacterial / Q000302:isolation & purification*; D002417:Cattle; D005260:Female; D016927:Mycobacterium avium subsp. paratuberculosis / Q000276:immunology*; D009664:Norway / Q000453:epidemiology; D010283:Paratuberculosis / Q000453:epidemiology / Q000276:immunology*
D000907:Antibodies, Bacterial