title: Further genetic evidence for maintenance of early Hong Kong-like influenza A(H3N2) strains in swine until 1976.
mesh_terms: D000818:Animals; D005787:Gene Frequency; D005814:Genes, Viral; D006801:Humans; D053122:Influenza A Virus, H3N2 Subtype; D009980:Influenza A virus / Q000235:genetics*; D009154:Mutation; D009843:Oligoribonucleotides / Q000032:analysis; D012367:RNA, Viral / Q000032:analysis
chemical_list: D009843:Oligoribonucleotides; D012367:RNA, Viral