iav

The infectivity of IAV on MDCK cells was determinated by hemagglutination test .

血凝实验测定甲型流感病毒对MDCK细胞的感染性。

Influenza A virus ( IAV ) is a highly infectious RNA virus , which can infect the upper and lower airway epidermic cells .

流感病毒是一种有高度传染性的正链RNA病毒，能对人的上呼吸道和下呼吸道上皮细胞进行感染。

Pandemic viruses are generated by the rearrangement ( reassortment ) of viral RNA segments in cells infected with two different strains of IAV .

造成大流行的流感病毒常常是由两种毐株的不同RNA节段在感染细胞吋发生基因重排而产生的。

The Shenzhen Multimedia Communication Network is divided into two pans according to the adopted access technologies and functions : ( 1 ) the FTTB - and VDSL - based IAV system ;

深圳市宽带多媒体通信网按照其接入技术和功能分成两个部分：（1）基于FTTB和VDSL的深圳市视频点播（IAV）系统；

There is growing evidence that IAV has evolved highly sophisticated strategies to overcome the antiviral signaling , such as antigen variation and encoding accessory proteins ( NS1 and PB1-F2 ) .

越来越多的证据表明，IAV已经进化出高超的策略克服宿主的抗病毒信号，如抗原变异和编码辅助蛋白（NS1和PB1-F2）。