Results are submitted on the treatment of 192 miners free from manifest signs of silicosis when they first presented with different forms of pulmonary tuberculosis. Tuberculosis in those individuals engaged in the coal industry was found out to poorly respond to treatment. During the period of 1.5-2 years, cicatrization of the cavities of decay occurred in 42.6 percent of the cases, no bacteria were recoverable in 50.0 percent. The treatment results were dependent upon the utilization of combinations of antituberculous drug preparations, routes of their administration and choice of pathogenetic options. The greatest benefit from treatment occurred with izoniazid, rifampicin, ethambutol and intrabronchial instillations of izoniazid.
