Broadening of bacteriological testing for tubercle bacilli presence concerns patients with chronic cough treated in out-patients clinics and in hospital wards excluding tuberculosis control wards. Bacteriological tests have been carried out in tuberculosis laboratories as ordered by doctors of out-patient clinics and hospitals. From 05.11.1993 to 30.09.1994, 3917 tests were carried out on various specimens supplied to laboratories: sputum, urine, pleural fluid, peritoneal fluid, pus from lymph nodes. In 60 specimens positive results were obtained with the use of direct method or the mycobacterial culture. Pulmonary tuberculosis was diagnosed in 23 patients, renal tuberculosis--in 2 patients, tuberculosis of bones--in 1 case, tuberculosis of the peripheral lymph nodes--in 1 case, peritoneal tuberculosis--in 1 case. All the patients underwent specialized treatment. The above presented results justify the continuation of the tests.