Influenza surveillance: November 1982-June 1983.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007251:Influenza, Human / Q000453:epidemiology* / Q000382:microbiology; D008875:Middle Aged; D011159:Population Surveillance; D006113:United Kingdom