[Distribution of type-specific antibodies to streptococcal lipoproteinase based on population screening data].

In the serum samples obtained from residents of the Todzhinsky district in the Tuva Autonomous Soviet Socialist Republic antibodies to 12 out of 15 studied types of group A streptococcal lipoproteinases (OF-factor) were detected, with the prevalence of types 2, 4, 22, 25, 48, and 60, their incidence in the population constituting 34%. Antibodies to OF-antigens 58, 62, and 63 were not detected. The distribution of OF-antibodies was found to vary with sex, occurring in females 1.5 times more frequently than in males, and with age, accumulating in subjects aged 21-30 and 31-40. The distribution of antibodies to different OF serotypes did not depend on the blood serum streptolysin O titers.