Some Immune Responses in Cattle Exposed to Mycobacterium Paratuberculosis after Injection with Modified-Live Bovine Viral Diarrhea Virus Vaccine
- 1 July 1990
- journal article
- Published by SAGE Publications in Journal of Veterinary Diagnostic Investigation
- Vol. 2 (3) , 176-179
- https://doi.org/10.1177/104063879000200304
Abstract
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.Keywords
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