Implementation of recommendations for influenza control.
D000328:Adult; D002648:Child; D004196:Disease Outbreaks / Q000517:prevention & control; D005260:Female; D006801:Humans; D007251:Influenza, Human / Q000517:prevention & control*; D007326:Institutionalization; D011247:Pregnancy; D012306:Risk; D014611:Vaccination