[Immunity parameters in children with prior intrathoracic tuberculosis]

Fifty-four children who had experienced intrathoracic tuberculosis were clinically and immunologically studied 3-10 years following chemotherapy. The count of T cells and their functional activity were found to be normal in 90.7% of children. Tuberculosis antibodies were identified in 62% of children, which suggests only long preserved specific sensitization. The tuberculosis antigen titer 1:16 was detected in 5.5% of children with residual changes, which generates the necessity of examining such children for a latent active process.