Genetic characterization and receptor binding analysis of a novel H5N1 HPAI virus with a H6Nx-derived PA gene in Guangdong, China - Jieheng He; Jing Liu; Zhanfei Yan; Gaojie Chen; Runzhi Liu; Yu Yang; Yulin Yan; Sheng Yuan; Jinyue Guo; Yong Li; Hai Yu; Zhaoping Liang; et al. (Emerging Microbes and Infections)