[Differences in certain immunological indices among persons who have had cholera and among Vibrio carriers].

Blood sera of persons, who sustained cholera of different degree of severity, and of vibrio-carriers, and also chromatographic fractions obtained in separation of the mentioned sera on DEAE-cellulose were investigated in the reaction of agglutination and the indirect hemagglutination test. Immunological response in the vibrio carriers was realized by the microglobulin, and in the convalescents--by the macroglobulin type. There was also revealed an association between the severity of the course of cholera and the prevalence in the blood serum of one or another type of specific antibodies: in severe forms of the disease the antibodies of the IgM-class were detected with the greatest frequency, and microglobulin antibodies--in vibrio carriers. The detected differences in the immunological status of those who sustained cholera and of vibrio-carriers could be used as an additional differential sign in the diagnosis of the mentioned conditions.