TY - GEN AU - Chu,Ying Cheung AU - Cheung,Chung Lam AU - Hung Leung,Connie Yin AU - Man Poon,Leo Lit AU - Chen,Honglin AU - Peiris,Joseph Sriyal Malik AU - Guan,Yi TI - Continuing evolution of H9N2 influenza viruses endemic in poultry in southern China SN - 1750-2659 PY - 2011///0727 KW - Animals KW - Evolution, Molecular KW - Genotype KW - Hong Kong KW - epidemiology KW - Influenza A Virus, H9N2 Subtype KW - classification KW - Influenza in Birds KW - Membrane Proteins KW - genetics KW - Phylogeny KW - Population Surveillance KW - Poultry KW - virology KW - Reassortant Viruses N1 - Publication Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't ER -