title: Swine flu outbreak. Past pandemics provide mixed clues to H1N1's next moves.
authors.forename: Jon
authors.initials: J
authors.lastname: Cohen
mesh_terms: D000818:Animals; D004196:Disease Outbreaks; D005544:Forecasting; D005843:Geography; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000235:genetics / Q000472:pathogenicity*; D007251:Influenza, Human / Q000453:epidemiology* / Q000821:virology; D009154:Mutation; D009976:Orthomyxoviridae Infections / Q000453:epidemiology / Q000662:veterinary / Q000821:virology; D016865:Reassortant Viruses / Q000235:genetics; D012621:Seasons; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology / Q000821:virology