Swine flu outbreak. Out of Mexico? Scientists ponder swine flu's origins.
Cohen
Jon
J
D000818:Animals; D004196:Disease Outbreaks; D005814:Genes, Viral; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000145:classification / Q000235:genetics / Q000302:isolation & purification; D007251:Influenza, Human / Q000453:epidemiology* / Q000635:transmission / Q000821:virology; D008800:Mexico / Q000453:epidemiology; D009976:Orthomyxoviridae Infections / Q000662:veterinary / Q000821:virology; D013552:Swine; D013553:Swine Diseases / Q000821:virology; D014481:United States / Q000453:epidemiology; D055815:Young Adult