title: [Uniqueness of the influenza epidemic situation in Leningrad in 1977-1978].
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D004196:Disease Outbreaks / Q000453:epidemiology*; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology*; D008875:Middle Aged; D012141:Respiratory Tract Infections / Q000453:epidemiology; D012426:Russia; D012621:Seasons; D014505:Urban Population
vernacular_title: Svoeobrazie épidemicheskoĭ situatsii pri grippe v Leningrade 1977-1978 gg.