From the Centers for Disease Control and Prevention. Update: influenza activity--United States, 1996-97 season.
D006801:Humans; D007196:Indiana / Q000453:epidemiology; D009980:Influenza A virus; D009981:Influenza B virus; D007251:Influenza, Human / Q000453:epidemiology*; D009518:New York / Q000453:epidemiology; D009519:New York City / Q000453:epidemiology; D012621:Seasons; D014481:United States / Q000453:epidemiology; D014922:Wisconsin / Q000453:epidemiology