Influenza H7N9 and H9N2 viruses: coexistence in poultry linked to human H7N9 infection and genome characteristics

Xinfen Yu, Tao Jin, Yujun Cui, Xiaoying Pu, Jun Li, Jin Xu, Guang Liu, Huijue Jia, Dan Liu, Shili Song, Yang Yu, Li Xie, Renjie Huang, Hua Ding, Yu Kou, Yinyan Zhou, Yayu Wang, Xun Xu, Ye Yin, Jian WangChenyi Guo, Xianwei Yang, Liangping Hu, Xiaopeng Wu, Hailong Wang, Jun Liu, Guoqiu Zhao, Jiyong Zhou, Jingcao Pan, George F. Gao, Ruifu Yang, Jun Wang