[Tuberculin reaction in children with tuberculosis during specific treatment and development of intercurrent diseases].

Over the last 15 years a significant decrease in sensitivity of children with tuberculosis to tuberculin has not occurred. A reaction to the Mantoux test with 2TU produces positive results in 95-99% of the cases. In almost half of the patients a decrease in the given reaction was registered as a result of specific treatment over a long period of time. After having intercurrent diseases, there were fluctuations in tuberculin reactions (more frequently in a downward direction), but this did not prevent infection detection because these reactions remained positive.