[Grippe epidemic - 1968].
D001208:Asia; D002489:Central America; D004196:Disease Outbreaks / Q000453:epidemiology*; D005060:Europe; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology*; D009656:North America; D013020:South America
Gripe epidêmica - 1968.