Methods The throat swab specimens of ILI were cultivated with MDCK cells and the isolates of influenza viruses were identified by HA and HI, and then screened their genetic typings.

• 方法采用流感样病例(ILI)的咽拭子标本用狗肾细胞(MDCK)进行病毒分离培养，采用血凝(HA)及血凝抑制(HI)方法进行流感病毒初筛及分型鉴定。