[Tuberculosis in children of various ages: vaccination, chemoprophylaxis, the specific features of detection, and clinical course].

Examination of 296 cases of active forms of tuberculosis in children showed various age-dependent antituberculous measures. 14.8% of the children less than 3 years of age had not been vaccinated against tuberculosis; 19.8% had earlier received chemoprophylaxis; and contact with patients with tuberculosis was detected more frequently (70.4%). Against this background, tuberculosis in infancy was more commonly identified from complaints (48.1%) and less frequently at mass tuberculin diagnosis (19.8%); the generalized forms of the disease and complicated tuberculosis of intrathoracic lymph nodes were more frequently found (16% and 24.7%), a fatal outcome was oftener observed (7.4%). The secondary forms of tuberculosis were revealed in 23.8% of schoolchildren. Overall, the mean size of a papule emerging from the Mantoux test was 12.8 +/- 0.37 mm at the detection of tuberculosis.