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Status of bacillary tuberculosis cases identified in a community survey under different control programmes
T Santha1, R Subramani, P G Gopi
1Tuberculosis Research Centre, Chennai, Tamil Nadu, India.
Abstract:
We report the status of bacillary tuberculosis (TB) cases identified in community surveys undertaken at 2.5-year intervals. We observed three cohort periods to represent the different TB control programmes, namely 12-18 months of treatment (pre-short-course chemotherapy [pre-SCC]), 6-8 months SCC and DOTS in the area. There was a significant reduction in deaths from 23% to 17%, and an increase in the proportion of cases negative by smear and/or culture for Mycobacterium tuberculosis, from 54% to 58% in the pre-SCC and SCC cohorts to 80% in the DOTS cohort. These findings suggest that the DOTS strategy could have a significant influence on TB epidemiology.
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