title: Influenza. Despite large research effort, H7N9 continues to baffle.
authors.forename: Mara
authors.initials: M
authors.lastname: Hvistendahl
authors.forename: Dennis
authors.initials: D
authors.lastname: Normile
authors.forename: Jon
authors.initials: J
authors.lastname: Cohen
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000097:blood; D002645:Chickens / Q000821:virology; D002681:China / Q000453:epidemiology; D021821:Communicable Diseases, Emerging / Q000175:diagnosis / Q000635:transmission* / Q000821:virology*; D006801:Humans; D009980:Influenza A virus / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology*; D005585:Influenza in Birds / Q000453:epidemiology / Q000635:transmission*; D007251:Influenza, Human / Q000175:diagnosis / Q000453:epidemiology / Q000821:virology*
chemical_list: D000914:Antibodies, Viral