Influenza vaccines.
D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000517:prevention & control*; D005260:Female; D006801:Humans; D017589:Immunization Programs / Q000592:standards*; D007223:Infant; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D017410:Practice Guidelines as Topic; D014611:Vaccination / Q000592:standards*; D014944:World Health Organization
D007252:Influenza Vaccines