title: Comparison of haemagglutination-inhibition and single radial haemolysis techniques for detecting antibodies to influenza A and B viruses.
abstract: The sensitivities of haemagglutination-inhibition (HI) and single radial haemolysis (SRH) techniques in detecting antibodies against influenza A/Bangkok/1/79, A/Brazil/11/78, B/Singapore/222/79, B/Hong Kong/5/72 strains, in human sera were compared. For antibodies to influenza B viruses the HI tests employing ether-treated antigens were also evaluated. The SRH technique appears to be more sensitive for detecting protective titres of antibodies against influenza B strains and influenza A/Brazil/11/78.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D004986:Ether; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006461:Hemolysis; D006801:Humans; D007158:Immunologic Techniques; D007223:Infant; D009980:Influenza A virus / Q000276:immunology*; D007251:Influenza, Human / Q000276:immunology; D008297:Male; D008875:Middle Aged; D009975:Orthomyxoviridae / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D004986:Ether