Volume 19, Number 11—November 2013
Pseudorabies Virus Variant in Bartha-K61–Vaccinated Pigs, China, 2012
|Group no.||Vaccinated with Bartha-K61||No. PRV antibody–positive before challenge/no. total||Challenge virus||No. sick after challenge/no. total||No. deaths after challenge/no. total||No. protected sheep/no. total|
*Sheep from a farm determined to be free from PRV infection were randomly assigned to 4 isolation rooms (Groups 1–4). After vaccination, sheep were challenged with PRV strain HeN1 or SC and continuously observed for 14 days. PRV, pseudorabies virus.
1These authors contributed equally to this article.