Influenza.
D000368:Aged; D002648:Child; D004196:Disease Outbreaks / Q000517:prevention & control*; D005260:Female; D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control*; D011247:Pregnancy; D014611:Vaccination; D014613:Vaccines, Attenuated
D007252:Influenza Vaccines; D014613:Vaccines, Attenuated