Bird flu: on border patrol.
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Erika
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D000413:Alaska / Q000453:epidemiology; D025041:Animal Migration; D000818:Animals; D001208:Asia / Q000453:epidemiology; D001717:Birds / Q000502:physiology / Q000821:virology*; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype / Q000235:genetics / Q000302:isolation & purification*; D005585:Influenza in Birds / Q000453:epidemiology* / Q000635:transmission / Q000821:virology*; D009549:Nigeria / Q000453:epidemiology; D011159:Population Surveillance / Q000379:methods; D015047:Zoonoses / Q000453:epidemiology / Q000635:transmission / Q000821:virology