Influenza update.
D000328:Adult; D000368:Aged; D000547:Amantadine / Q000627:therapeutic use; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks; D006801:Humans; D007252:Influenza Vaccines / Q000009:adverse effects / Q000627:therapeutic use; D007251:Influenza, Human / Q000453:epidemiology* / Q000401:mortality / Q000517:prevention & control; D008875:Middle Aged; D014481:United States
D007252:Influenza Vaccines; D000547:Amantadine