title: Characterization of antigenic structure of influenza A2 virus strains isolated in the 1965 epidemic.
mesh_terms: D000818:Animals; D000941:Antigens / Q000032:analysis*; D002642:Chick Embryo; D002648:Child; D002675:Child, Preschool; D003168:Complement Fixation Tests; D004196:Disease Outbreaks; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007223:Infant; D007251:Influenza, Human / Q000453:epidemiology / Q000382:microbiology; D009500:Neutralization Tests; D009975:Orthomyxoviridae / Q000276:immunology* / Q000302:isolation & purification; D014586:USSR
chemical_list: D000941:Antigens