title: H7N9 avian flu kills seven and infects 23 in China.
authors.forename: Jane
authors.initials: J
authors.lastname: Parry
mesh_terms: D000818:Animals; D001717:Birds; D002681:China / Q000453:epidemiology; D006801:Humans; D009980:Influenza A virus / Q000145:classification / Q000472:pathogenicity*; D005585:Influenza in Birds / Q000635:transmission*; D007251:Influenza, Human / Q000453:epidemiology* / Q000821:virology