title: [Use of microcapsular leptospiral antigens for detecting specific antibodies].
abstract: The sensitivity of microcapsular leptospiral antigens, produced by Japan Lyophilization Laboratory and intended for use in tests for the detection of antibodies to leptospires in the sera of experimentally immunized laboratory animals, were studied. The comparative study of the microcapsular agglutination (MCA) test and other serological tests, such as the microagglutination (MA) test and the indirect enzyme immunoassay (EIA), was made. The leptospiral antigens under study were found to actively react with serospecific and group-specific antibodies. In infected guinea pigs and rabbits specific antibodies could be detected from days 3-4 in the MCA test and only from days 5-7 in the MA test. The average antibody level determined by titration in the MCA test was 3.3 times higher and in indirect EIA, 4.3 times higher than that determined by titration in the MA test. These data make it possible to recommend the use of microcapsular leptospiral antigens for the early diagnosis of leptospirosis.
authors.forename: E G
authors.initials: EG
authors.lastname: Volina
authors.forename: Y
authors.initials: Y
authors.lastname: Arimitsu
authors.forename: S
authors.initials: S
authors.lastname: Kobayashi
authors.forename: V S
authors.initials: VS
authors.lastname: Kiktenko
authors.forename: E A
authors.initials: EA
authors.lastname: Tkachenko
mesh_terms: D000327:Adsorption; D000372:Agglutination Tests / Q000379:methods; D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis*; D000918:Antibody Specificity; D000942:Antigens, Bacterial / Q000276:immunology*; D002214:Capsules; D005069:Evaluation Studies as Topic; D006168:Guinea Pigs; D007114:Immunization; D007124:Immunoenzyme Techniques; D007919:Leptospira / Q000276:immunology*; D007921:Leptospira interrogans / Q000276:immunology; D041341:Leptospira interrogans serovar canicola / Q000276:immunology; D011817:Rabbits; D013997:Time Factors
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D002214:Capsules
vernacular_title: Ispol'zovanie leptospiroznykh mikrokapsul'nykh antigenov dlia vyiavleniia spetsificheskikh antitel.