Recent experience of influenza.
D002648:Child; D004196:Disease Outbreaks; D004739:England; D006801:Humans; D009980:Influenza A virus; D007252:Influenza Vaccines / Q000627:therapeutic use; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control; D008297:Male; D012574:Schools; D014611:Vaccination
D007252:Influenza Vaccines