[Results of epidemiological and clinical studies of the prevalence of chronic nonspecific diseases of the respiratory organs among rural population].

The results of many years' investigations conducted in 3 experimental republican regions are presented. The investigations were aimed at establishing the reliable indices of the prevalence of chronic nonspecific respiratory diseases in rural population and the development of preventive measures in subjects at a high risk of tuberculosis infection in certain patients with chronic nonspecific respiratory diseases who have some post-tuberculous lung changes. It is emphasized that rendering of the preventive and therapeutic aid to pneumologic patients requires joint efforts of phthisiatrists, pneumologists and therapeutists.