The H1N1 flu pandemic. What you need to know.
D054626:Consumer Health Information; D004196:Disease Outbreaks / Q000517:prevention & control* / Q000706:statistics & numerical data; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission; D010349:Patient Compliance; D010353:Patient Education as Topic; D011322:Primary Prevention / Q000379:methods; D012621:Seasons; D014481:United States / Q000453:epidemiology