The National Thberculosis Control Programme

A national tuberculin survey was perfonned in 1964-19661and a tuberculosis prevalence survey in 1987-19882. The World Health Organization (WHO) estimated the Annual Risk of TB Infection (ART!) in Bangladesh to be of2.24% in 1997with anaturaldecrease of 1% per ye~,4. Extrapolating to 1999,the estimated.ART! is 2.20% and the incidence of pulmonaryTBsmear-positive (infectious) cases is 108per 100,000population. With an estimated ratio of 1:1.22 between pulmonary new smear-positive and other fonns of TB, the incidence of any fonn of TB is 241 per 100,000 population.

 

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