| neutralizing antibodies to bovine herpesvirus-1 (bhv-1) and bovine parainfluenza-3 (pi-3) viruses in cattle in tunisia. | a serological survey was conducted in an attempt to detect antibodies to bovine respiratory viruses in cattle from several localities around tunis. blood was collected from approximately 10% of the animals in each of the 44 farms visited and tested for specific antibodies against bovine herpesvirus-1 (bhv-1) and bovine parainfluenza-3 (pi-3) viruses, by elisa and serum neutralization (sn). antibodies to pi-3 and bhv-1 viruses were demonstrated in 55.3% and 25.9% animals, respectively. an overall ... | 1990 | 1966261 |