Swine flu goes global.
Butler
Declan
D
D000818:Animals; D001717:Birds / Q000821:virology; D002487:Centers for Disease Control and Prevention, U.S.; D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000235:genetics / Q000302:isolation & purification* / Q000472:pathogenicity; D053124:Influenza A Virus, H5N1 Subtype / Q000472:pathogenicity; D007251:Influenza, Human / Q000453:epidemiology* / Q000401:mortality / Q000635:transmission / Q000821:virology; D038622:Internationality; D008800:Mexico / Q000453:epidemiology; D013552:Swine / Q000821:virology*; D014481:United States; D014944:World Health Organization