Influenza surveillance: 1995/96.
D000293:Adolescent; D004196:Disease Outbreaks; D004739:England / Q000453:epidemiology; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000821:virology; D011159:Population Surveillance / Q000379:methods; D012017:Referral and Consultation / Q000706:statistics & numerical data; D014852:Wales / Q000453:epidemiology