Correction to: Transmission of H7N9 influenza virus in mice by different infective routes

oleh: Linlin Bao, Lili Xu, Hua Zhu, Wei Deng, Ting Chen, Qi Lv, Fengdi Li, Jing Yuan, Yanfeng Xu, Lan Huang, Yanhong Li, Jiangning Liu, Yanfeng Yao, Pin Yu, Honglin Chen, Chuan Qin