The Presence of infectious bovine rhinotracheitis virus, bovine viral diarrhea virus, bovine respiratory syncytial virus and parainfluenza virus in non-vaccinated beef and dairy cattle in Mexico detected by an enzyme linked immunosorbent assay (ELISA) method

Abstract

A serological survey of 12 states of Mexico against IBR, BVD, BRSV and PI3 by an ELISA method showed a seroprevalence of 54.91%, 55.99%, 66.38% and 73.12% in nonvaccinated beef and dairy cattle. In beef animals the results were 54.94% positive for IBR, 54.18% for BVD, 63.59% for BRSV and 71.37% for PI3, whereas in dairy cattle the percentage of seropositive animals was 54.73% for IBR, 64.81% for BVD, 78.70% for BRSV and 82.10% for PI3.84.61% of the herds tested(44) were positive to the four viruses simultaneously, 9.61% (5 herds) had antibodies against three viruses, 2 herds (3.8%) were positive to two viruses and one herd to one virus (1.92%); no herds were found completely seronegative to any of these four viruses.