title: Avian influenza update.
authors.forename: Betsy
authors.initials: B
authors.lastname: Todd
mesh_terms: D003140:Communicable Disease Control; D021821:Communicable Diseases, Emerging / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control*; D006801:Humans; D017053:Infection Control; D053124:Influenza A Virus, H5N1 Subtype; D007251:Influenza, Human / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control*; D014195:Travel; D014481:United States / Q000453:epidemiology