[Adolescent morbidity in cities with a high rate of tuberculous infections].

Examination of 4138 adolescents aged 15-17 years (schoolchildren, students of technical vocational schools and specialized secondary schools and colleges) who are residents of two Kazakhstan towns differing in the epidemiological situation has shown that the mean M. tuberculosis contamination of the adolescents, residents of the epidemiologically unfavourable region, is high, attaining 47.5%.