title: Detection of antibodies to leptospiral genus-specific antigen in human and animal sera by indirect hemagglutination test with a partially purified genus-specific protein antigen.
abstract: Antibodies against leptospiral genus-specific antigen were detected in the sera from clinically diagnosed human leptospirosis and suspected animal leptospirosis by indirect hemagglutination (IHA) test with a partially purified genus-specific protein antigen (GP-Ag). The reaction was positive in the infected humans and animals irrespective of the leptospiral serovars. No significant correlation was found between IHA titer against GP-Ag and microscopic agglutination (MA) titer. IHA titer did not always develop in parallel with MA titers. Sera obtained from healthy individuals were negative in both IHA and MA tests.
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis*; D000918:Antibody Specificity; D000942:Antigens, Bacterial / Q000276:immunology*; D001426:Bacterial Proteins / Q000276:immunology*; D002417:Cattle; D002418:Cattle Diseases / Q000276:immunology; D004283:Dog Diseases / Q000276:immunology; D004285:Dogs; D006386:Hemagglutination Tests / Q000662:veterinary; D006801:Humans; D007919:Leptospira / Q000276:immunology*; D007922:Leptospirosis / Q000276:immunology* / Q000662:veterinary; D013552:Swine; D013553:Swine Diseases / Q000276:immunology; D014895:Weil Disease / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D001426:Bacterial Proteins