[Influenza].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000453:epidemiology; D005060:Europe; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000453:epidemiology* / Q000266:history / Q000382:microbiology; D008800:Mexico; D008875:Middle Aged; D009975:Orthomyxoviridae
D007252:Influenza Vaccines
Influenza.