Antigenic analysis of influenza viruses isolated in Thailand, June--August 1981.
D000956:Antigens, Viral / Q000032:analysis*; D006386:Hemagglutination Tests; D006801:Humans; D009975:Orthomyxoviridae / Q000276:immunology*; D012621:Seasons; D013785:Thailand
D000956:Antigens, Viral