[Origin of pandemic strains of the influenza virus].
D000818:Animals; D000956:Antigens, Viral / Q000235:genetics / Q000276:immunology; D004196:Disease Outbreaks; D005814:Genes, Viral; D014644:Genetic Variation; D006801:Humans; D009980:Influenza A virus / Q000145:classification / Q000276:immunology* / Q000472:pathogenicity; D007251:Influenza, Human / Q000276:immunology; D009154:Mutation; D009439:Neuraminidase / Q000276:immunology; D011995:Recombination, Genetic; D012703:Serotyping; D014774:Virulence
D000956:Antigens, Viral; D009439:Neuraminidase
O proiskhozhdenii pandemicheskikh shtammov virusa grippa.