Serological survey on bovine parainfluenza type 3 in Shahrekord district (Iran)

The purpose of this study was to determine the rate of infection prevalence caused by bovine parainfluenza virus type 3 (BPIV3) and involvement of several factors such as age, sex, and vaccination against common diseases in Iran such as Brucellosis, rinderpest, and foot and mouth disease in the rate of infection. This study was conducted on 400 cattle of Shahrekord district. Using serum neutralization test, the results showed that 119 of 400 samples were positive (29.75%). The lowest and highest infection rate was in group aged 61–72 months (20%) and 49–60 months (38.88%), respectively. From 400 samples, 30 of 90 (33.33%) and 89 of 310 (28.7%) of them that were taken from males and females, respectively, were positive. There was a significant difference in presence of antibody titer between male and female cattle. In conclusion, BPIV3 had 30% prevalence in this area. Thus, health management (sufficient ventilation, temperature controlling, and avoiding overcrowding) and vaccination against this virus is recommended.