title: Influenza: seasonal and pandemic--why we should be concerned.
authors.forename: Robert T
authors.initials: RT
authors.lastname: Ball
mesh_terms: D002487:Centers for Disease Control and Prevention, U.S.; D004196:Disease Outbreaks; D014943:Global Health; D006801:Humans; D009980:Influenza A virus / Q000235:genetics; D007252:Influenza Vaccines / Q000627:therapeutic use*; D007251:Influenza, Human / Q000453:epidemiology* / Q000401:mortality / Q000517:prevention & control*; D009154:Mutation; D012621:Seasons; D014481:United States / Q000453:epidemiology
chemical_list: D007252:Influenza Vaccines