An influenza epicentre?
D000818:Animals; D002681:China; D004196:Disease Outbreaks / Q000453:epidemiology*; D004372:Ducks / Q000382:microbiology; D006723:Hong Kong; D006801:Humans; D009980:Influenza A virus / Q000302:isolation & purification; D007251:Influenza, Human / Q000453:epidemiology* / Q000382:microbiology / Q000401:mortality; D009975:Orthomyxoviridae / Q000235:genetics / Q000302:isolation & purification; D011201:Poultry Diseases / Q000382:microbiology / Q000635:transmission; D013552:Swine / Q000382:microbiology; D013553:Swine Diseases / Q000635:transmission