Bird flu developments stoke fears.
Williams
Nigel
N
D000818:Animals; D001717:Birds; D004196:Disease Outbreaks / Q000662:veterinary*; D005060:Europe / Q000453:epidemiology; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype; D005585:Influenza in Birds / Q000453:epidemiology* / Q000635:transmission*; D007251:Influenza, Human / Q000453:epidemiology*; D011159:Population Surveillance; D014421:Turkey / Q000453:epidemiology; D014744:Vietnam / Q000453:epidemiology; D015047:Zoonoses / Q000821:virology