title: [Influenza A (H1N1)--a new communicable disease].
authors: Xiao-yuan
authors: XY
authors: Xu
authors: Ying-ying
authors: YY
authors: Zheng
mesh_terms: D021821:Communicable Diseases, Emerging; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human