A Single-Amino-Acid Substitution in the NS1 Protein Changes the Pathogenicity of H5N1 Avian Influenza Viruses in Mice

Peirong Jiao, Guobin Tian, Yanbing Li, Guohua Deng, Yongping Jiang, Chang Liu, Weilong Liu, Zhigao Bu, Yoshihiro Kawaoka and Hualan Chen

Journal of Virology 82 ( 3 ): 1146 - 1154 , 2008