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目的 分析江西省世行贷款血防项目疾病监测结果 ,评估血吸虫病防治效果。方法 在项目覆盖区域 ,采用分层整群随机抽样法选择 5 7个行政村作为疫情监测点 ,1992～ 1998年期间每年开展人群、耕牛及螺情监测 ,对各项监测结果按不同疫区层次纵向比较其年间变化及总体变化趋势。结果 7年来 ,全省一层村所占比例从 1992年的 13.30 %下降至 1998年的 5 .18% ,二层村从42 .88%下降至 2 8.46 % ;全省人群平均感染率和感染度分别下降了 6 0 .89%和 6 2 .86 % ,耕牛感染率下降了 38.74% ,钉螺密度和感染螺密度也有较大幅度下降。结论 江西省血吸虫病流行区通过1992～ 1998年世行贷款血防项目的实施 ,一、二层疫区范围显著压缩 ,人群感染率和感染度大幅度下降 ,全省血吸虫病流行得到了初步控制 ,项目取得了较好的防治效果。
Objective To analyze the disease surveillance results of World Bank loan schistosomiasis control project in Jiangxi Province and evaluate the effectiveness of schistosomiasis control. Methods A total of 57 administrative villages were selected as the monitoring sites in the project coverage area by using stratified cluster random sampling method. During the period from 1992 to 1998, population, farm cattle, and snail status were monitored every year. The results of the monitoring were determined according to the different epidemic areas. The vertical and horizontal comparisons compare the changes between years and the overall trends. Results In the past 7 years, the proportion of villages in the first floor of the province has dropped from 13.3% in 1992 to 5.18% in 1998; the number of villages in the second floor has fallen from 42.88% to 28.46%; the average infection rate and infection in the entire province The degrees of decline were 60.89% and 62.86% respectively, and the cattle infection rate decreased by 38.74%. The snail density and infection screw density also decreased significantly. Conclusion The epidemic area of schistosomiasis in Jiangxi province passed the World Bank loan schistosomiasis control project from 1992 to 1998. The scope of the first and second layer of the epidemic area was significantly compressed, the infection rate and the infection rate of the population were greatly reduced, and the epidemic of schistosomiasis in the province was initially controlled. The project has achieved a good control effect.