[Supervision of tuberculosis facilities].

The paper presents the current approaches to organizing and supervising tuberculosis at different levels. The present-day conditions for organizational and methodological measures are analyzed, the concept of supervision is defined and its principles and main elements are described.

[Reactions of delayed hypersensitivity in patients with tuberculosis in its dormancy and pandemic].

Comparison of the results of tuberculin diagnosis in patients with tuberculosis during two studies made by the same procedure in 1973 and 1998 showed a marked increase in delayed hypersensitivity, which is indicative of higher sensitization in persons inoculated with Mycobacterium tuberculosis. This appears to be associated with the higher frequency and spread of exogenous reinfections and with the increased virulence of the causative agent.

[Tuberculosis epidemiology-epizoology relationship in West Siberia].

Comparison of tuberculosis epizootic tension with some parameters characterizing the epidemiological situation in areas with different incidence rates of cattle tuberculosis under present conditions showed their inverse correlation. It is suggested that with a drastic improvement of the epizootic situation, the cattle becomes an agent of natural immunization of inhabitants in poor districts, as evidenced not only by the lack of new cases of tuberculosis in human beings, but by an increase in cases with residual posttuberculous changes in the lung (14.1% of the stock breeders examined in the long poor tuberculosis area versus 3.

[The effect of an unfavorable epizootic situation on the basic epidemiological indices for tuberculosis].

Analysis is given of the basis of epidemiological parameters in two districts of the Novosibirsk region, depending on the duration of the unfavourable epizootic situation. Subjects with extensive residual changes were registered 10 times as often in the district with the unfavourable epizootic situation as in the district with fresh tuberculosis outbreak in animals. Studies of infectivity among children and adolescents at the height of tuberculosis outbreak in animals showed that reversion was established in 8.