[Epidemiological and virological characteristics of influenza in Leningrad in 1973-1976].
D000956:Antigens, Viral / Q000032:analysis; D006801:Humans; D009980:Influenza A virus / Q000276:immunology / Q000302:isolation & purification; D007252:Influenza Vaccines / Q000008:administration & dosage; D007251:Influenza, Human / Q000453:epidemiology* / Q000382:microbiology; D012426:Russia; D012621:Seasons; D014611:Vaccination
D000956:Antigens, Viral; D007252:Influenza Vaccines
Epidemiologicheskaia i virusologicheskaia kharakteristika grippa v Leningrade v 1973-1976 godakh.