title: Mechanisms of genetic variation in human influenza viruses.
mesh_terms: D000956:Antigens, Viral / Q000235:genetics; D001483:Base Sequence; D000939:Epitopes; D005814:Genes, Viral; D005815:Genetic Code; D014644:Genetic Variation; D006801:Humans; D009980:Influenza A virus / Q000235:genetics*; D009154:Mutation; D009975:Orthomyxoviridae / Q000145:classification / Q000235:genetics* / Q000276:immunology; D012367:RNA, Viral / Q000235:genetics; D011995:Recombination, Genetic; D012703:Serotyping
chemical_list: D000956:Antigens, Viral; D000939:Epitopes; D012367:RNA, Viral