title: Update: influenza activity--United States--and the role of rapid virus typing in improving amantadine use.
mesh_terms: D000368:Aged; D000547:Amantadine / Q000627:therapeutic use*; D004196:Disease Outbreaks / Q000453:epidemiology; D006801:Humans; D009980:Influenza A virus / Q000145:classification; D007251:Influenza, Human / Q000188:drug therapy / Q000453:epidemiology*; D014481:United States
chemical_list: D000547:Amantadine