Influenza--United States, 1986-87 season.
D000328:Adult; D000367:Age Factors; D000368:Aged; D001208:Asia; D002648:Child; D004196:Disease Outbreaks; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000401:mortality; D008875:Middle Aged; D011159:Population Surveillance; D014481:United States; D014944:World Health Organization