A simple model for planning and assessment of programmes for tuberculosis control
Nair, S.S. (1977) A simple model for planning and assessment of programmes for tuberculosis control. Indian Journal of Public Health, 21 (3). pp. 111-131.
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BCG vaccination (prevention) and casefinding followed by treatment (cure) are two universally accepted methods for controlling tuberculosis. BCG trails in selected populations have provided some information on the protective value of BCG, generally over short periods of time (below 20 years) and mainly among younger populations. Efficacy of different drug regimensfor treatment of tuber-culosis are well-establishedand a number of studies on the effectiveness of different types of treatment programmes on the patient population are available. However, the manner in which BCG and treatment affect the four epidemiological indices of prevalence and incidence of infection and prevalence and incidence of disease in the community, over a period of time, has not been reported in detail. This paper describes a simple set of models which provide this information and could therefore be used for planning and asses-sment of BCG vaccination and/or treatment programme for controlling tuberculosis.
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