... 2000 and assigned them the task of estimating the burden of TB in the country4. The Committee reviewed all the available data, including the estimates made by Chakraborty and Christopher ... from X-ray abnormals, eight samples were examined in a study by the NTI, in order to arrive at an estimate of the total bacteriological case load in a given community5. Further, in another ... the one hand, we are made aware by Chakraborty, in a recent communication1, and even in an earlier paper2, that he had found the available data in India unsuitable for efficacy and efficiency...