Antigenic and genetic analysis of A/Hong Kong (H3N2) influenza viruses isolated from swine and man.
Two H3N2 strains of influenza A virus isolated from pigs in Japan and Thailand were characterized antigenically and genetically. A/swine/Wadayama/5/69 (isolated in Japan in 1969) was antigenically similar to a human strain, A/Aichi/2/68, while A/swine/Bangkok/9/78 (a swine isolate in Thailand) was closely related to A/Bangkok/36/78, a contemporary human isolate. Gel electrophoresis and oligonucleotide mapping of the virus RNA revealed genetic similarity between A/swine/Wadayama/5/69 and A/Aichi/2/68, and between A/swine/Bangkok/9/78 and A/Bangkok/36/78, suggesting the derivation of swine H3N2 strains from contemporary human strains.
D000956:Antigens, Viral; D000939:Epitopes; D005814:Genes, Viral; D006389:Hemagglutinins, Viral / Q000276:immunology; D053122:Influenza A Virus, H3N2 Subtype; D009980:Influenza A virus / Q000235:genetics / Q000276:immunology*; D009439:Neuraminidase / Q000276:immunology; D012367:RNA, Viral / Q000032:analysis
D000956:Antigens, Viral; D000939:Epitopes; D006389:Hemagglutinins, Viral; D012367:RNA, Viral; D009439:Neuraminidase