Seroprevalence of OHV-2, BVDV, BHV-1, and BRSV in Ranch Raised Bison (Bison bison)

Elizabeth A. Sausker, and Neil W. Dyer
Veterinary Diagnostic Laboratory, North Dakota State University

Abstract

Reprinted from J. Vet. Diagn. Invest. 14:68-70 (2002)

S

erum samples were collected at slaughter from 226 24-30 month-old American bison (Bison bison) bulls from Kansas, Minnesota, North Dakota, and Manitoba and assayed for antibodies to ovine herpesevirus type-2 (OHV-2), bovine viral diarrhea virus (BVDV), bovine herpesvirus type-1 (BHV-1), and bovine respiratory syncytial virus (BRSV).  Antibodies were detected by serum neutralization for BVDV, BHV-1, and BRSV, while antibodies to OHV-2 were detected by competitive inhibition-ELISA (CI-ELISA).  Detectable antibodies were found against all viruses: 10 of 226 (4.40%) against OHV-2, 125 of 226 (55.3%) against BVDV, 99 of 226 (43.8%) against BHV-1, and 208 of 226 (92.0%) against BRSV.  Titers from 93.6% of the BVDV-positive animals, 79.8% of the BHV-1-positive animals, and 98.1% of the BRSV-positive animals were ≤1.25.  These data indicate that a low percentage of clinically normal bison are seropositive for OHV-2 while a high percentage of bison sampled are seropositive for BVDV, BHV-1, and BRSV. 

 

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