title: [Certain problems of influenza epidemiology (author's transl)].
mesh_terms: D000367:Age Factors; D000368:Aged; D004196:Disease Outbreaks; D006801:Humans; D009980:Influenza A virus / Q000276:immunology; D007251:Influenza, Human / Q000453:epidemiology*
vernacular_title: Neka pitanja u epidemiologiji influence.