title: Understanding H7N9 avian flu.
authors: Cong
authors: C
authors: Dai
authors: Min
authors: M
authors: Jiang
mesh_terms: D000818:Animals; D002681:China / Q000453:epidemiology; D004196:Disease Outbreaks; D006801:Humans; D009980:Influenza A virus / Q000235:genetics*; D005585:Influenza in Birds / Q000453:epidemiology / Q000635:transmission* / Q000821:virology; D007251:Influenza, Human / Q000175:diagnosis / Q000635:transmission*; D011200:Poultry