Some immune responses in cattle exposed to Mycobacterium paratuberculosis after injection with modified-live bovine viral diarrhea virus vaccine.
Delayed-type hypersensitivity responses to Mycobacterium paratuberculosis purified protein derivative (PPD) were decreased in cows experimentally exposed to M. paratuberculosis 7 days after exposure to a modified-live bovine viral diarrhea virus (ML-BVDV) vaccine. In vitro lymphocyte blastogenic responses to phytohemagglutinin were decreased in each of 3 cows 7 days after exposure to ML-BVDV vaccine. Also, decreased lymphocyte blastogenic responses to M. paratuberculosis PPD were observed in cultures of 2 of 3 cows 7 days after exposure to ML-BVDV vaccine. No significant differences in enzyme-linked immunosorbent assay reactions were detected in sera of M. paratuberculosis-infected cattle collected before and at 4 and 12 weeks after exposure to ML-BVDV vaccine.
Thoen
C O
CO
Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames 50011.
Waite
K J
KJ
D000818:Animals; D000907:Antibodies, Bacterial / Q000097:blood; D002417:Cattle; D002418:Cattle Diseases / Q000276:immunology*; D001908:Diarrhea Viruses, Bovine Viral / Q000276:immunology*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006968:Hypersensitivity, Delayed; D007111:Immunity, Cellular; D008213:Lymphocyte Activation; D009161:Mycobacterium / Q000276:immunology*; D010283:Paratuberculosis / Q000276:immunology*; D012882:Skin Tests; D014765:Viral Vaccines / Q000276:immunology*
D000907:Antibodies, Bacterial; D014765:Viral Vaccines