[Type B influenza in Leningrad].
D000328:Adult; D000956:Antigens, Viral / Q000032:analysis; D002648:Child; D003429:Cross Reactions; D006801:Humans; D009980:Influenza A virus / Q000276:immunology; D007251:Influenza, Human / Q000453:epidemiology / Q000276:immunology*; D009975:Orthomyxoviridae / Q000276:immunology; D012426:Russia; D014505:Urban Population
D000956:Antigens, Viral
Gripp tipa B v Leningrade.