Seroprevalence of antigens to bovine viral diarrhea virus in Korean calves of the shown healthy, digestive and respiratory symptom

The aim of this study was to investigate the prevalence of bovine vital diarrhea virus (BVDV) infection in Chonbuk province. Blood samples were taken from 92 korean calves to determined their serological status against BVDV. Capture enzyme- linked immunosorbent assay (ELISA) was used to test for antigen. The number of seropositive calves ranged from 3.3% to 12.9%. Antigens against BVDV were detected in 3.3% of healthy calves, 6.4% of digestive symptom calves, 12.9% of respiratory symptom calves, respectively. Sex and age of calves had no significant differences on the prevalence of BVDV. The results indicate that transmission of BVDV may have become exposed as a result of contact with acute infected or persistently infected cattle.