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  • Title: Evaluation of the 1992-1999 World Bank Schistosomiasis Control Project in China.
    Author: Zhang W, Wong CM.
    Journal: Acta Trop; 2003 Mar; 85(3):303-13. PubMed ID: 12659968.
    Abstract:
    The 1992-1999 World Bank Schistosomiasis Control Project in China contributed significantly to the disease control with its specific strategy and approach. An evaluation was made in this paper based on project control and surveillance data collected from all project provinces systematically year by year. Several indicators were computed, comparison was made using the 1989 survey data as the baseline, and correlation analysis was carried out on prevalence in humans, prevalence in cattle and buffaloes and infection rate of snails. From 1992 to 1998, the overall prevalence in human population, prevalence in children aged 7-14 and prevalence in cattle and buffaloes decreased by 5.74, 59.55 and 62.30%, respectively. Snail areas increased by 14.85% throughout the project period, while snail infection rate and density of infected snails decreased by 68.75 and 44.95%. Hubei province was among all eight provinces the most impressive in schistosomiasis control during the project. Results show that coverage of chemotherapy was among other factors the most directly-related to the prevalence in humans. The drug for chemotherapy-praziquantel was effective for new cases rather than reinfection. As to the overall achievement, most of the objectives set for the project had been achieved, especially the decrease in prevalence, in both human population and cattle and buffaloes. However, the achievement of snail control was not so ideal, which calls for rectification for a more applicable and practical strategy of snail control in China.
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