[Epidemiology of influenza since 1968].
D004196:Disease Outbreaks / Q000453:epidemiology*; D004739:England; D005860:Germany, West; D006801:Humans; D009980:Influenza A virus / Q000145:classification; D009981:Influenza B virus / Q000145:classification; D007251:Influenza, Human / Q000453:epidemiology* / Q000382:microbiology; D009626:Terminology as Topic; D014852:Wales
Epidemiologie der Influenza seit 1968.