The nose swabs of 192 pigs were gathered from 12 pig farms of 6 counties, three virus strains were separated through inoculating chicken embryos, and were determined SI H1 virus.

• 从6个区(县)12个猪场采集到192头猪的鼻拭子，通过鸡胚接种分离到3株病毒分离物，经鉴定为SI H1病毒。