From the Centers for Disease Control and Prevention. Update: influenza activity--United States and worldwide, 1992-1993 season.
D000293:Adolescent; D000328:Adult; D000818:Animals; D006224:Cricetinae; D004196:Disease Outbreaks; D014943:Global Health; D006801:Humans; D009980:Influenza A virus; D009981:Influenza B virus; D007251:Influenza, Human / Q000453:epidemiology*; D008875:Middle Aged; D011159:Population Surveillance; D014481:United States / Q000453:epidemiology