Tuberculosis in BCG vaccinated children.

test, chest X-ray, ESR, biopsy of the lesion whenever available, isolation of AFB if possible, and examination of the spinal, pleural or ascitic fluid depending upon the type of tuberculosis. Tuberculin test was done with 1 TU of purified protein derivative and was considered positive, when after 72 hours, an induration of more than 10 x 10 mm was seen. Presence of BCG scar was taken as confirmation of immunization. The cases were analyzed according to site of tuberculosis and the BCG immunization status. Relative risk (odds ratio) of the type of tuberculosis, its 95% confidence interval were calculated.