Influenza. Bird flu moves west, spreading alarm.
D000349:Africa / Q000453:epidemiology; D000818:Animals; D001208:Asia / Q000453:epidemiology; D001717:Birds; D005060:Europe / Q000453:epidemiology; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype; D005585:Influenza in Birds / Q000453:epidemiology* / Q000821:virology; D007251:Influenza, Human / Q000453:epidemiology* / Q000821:virology