[Acute pneumonia in persons with residual tuberculous lesions].

To elucidate the role of pneumonia in pathogenesis of reactivation of residual tuberculous lesions, time courses of clinicoroentgenological and immunological indices for a period of 3 to 5 years before detection of active tuberculosis were studied. Nonspecific bronchopulmonary aggravations progressing by the type of acute, persisting or abscessing pneumonia have many features providing their consideration as nonspecific "masks" of the specific process progression. The features are: localization, clinical picture, disease process, time course increasing of the host specific sensitization, hyperergic character of reactions to intracutaneous tests with tuberculin and BCG vaccine, signs of specific endobronchitis, no effect of nonspecific treatment and favourable time course of the process under the effect of specific antibacterial therapy.