title: [Similarity and difference in the antigenic composition of hemagglutinins isolated from influenza A2 viruses at different time intervals].
mesh_terms: D003168:Complement Fixation Tests; D000939:Epitopes; D006386:Hemagglutination Tests; D006389:Hemagglutinins, Viral / Q000032:analysis*; D006801:Humans; D009980:Influenza A virus / Q000276:immunology* / Q000302:isolation & purification; D007251:Influenza, Human / Q000382:microbiology*; D009975:Orthomyxoviridae / Q000276:immunology*; D013997:Time Factors
chemical_list: D000939:Epitopes; D006389:Hemagglutinins, Viral
vernacular_title: Skhodstvo i razlichie antigennogo sostava gemaggliutininov virusov grippa A2, vydelennykh v razlichnye sroki