[Immune status characteristics as the basis for the prognosis of lung diseases].

272 patients with pulmonary tuberculosis, 101 patients with pneumonia and 76 patients with cancer varying in severity have undergone a comprehensive immunological examination. Irrespective of the disease etiology, extension of the lesion in all the patients correlated with suppression of cellular immunity and activated IgA production. Increasing production of antituberculous antibodies in patients with disseminated tuberculosis and pulmonary cancer suggests unfavorable outcome of the disease. Genetic markers seem to relate with characteristics of pathological process in the lungs.