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目的评价以控制传染源为主的综合防治措施的近期效果,探索血吸虫病防治的有效方法。方法在安庆石门湖流域选取5个单位作为综合防治试点,观察试点前后,人群血吸虫病血检阳性率、家畜感染率、螺情等变化情况。结果人群血检阳性率由试点前的8.42%下降到试点后的6.05%,下降了28.15%(2χ=3.777,P<0.01);耕牛阳性率下降85%(2χ=12.444,P<0.01);活螺平均密度和钉螺感染率分别由试点前的0.87只/0.11m2和0.71%,下降到试点后的0.86只/0.11m2和0.56%。结论初期效果评价显示以控制传染源为主的综合防治措施有一定效果,仍需要加强对耕牛等家畜的淘汰和管理。
Objective To evaluate the recent effects of comprehensive prevention and control measures to control the source of infection and explore effective ways to prevent and treat schistosomiasis. Methods Five units were selected in Shimen Lake basin of Anqing as comprehensive prevention and control pilot. The positive rate of schistosomiasis blood test, infection rate of domestic animals and snail status were observed before and after the experiment. Results The positive rate of blood test in the population decreased from 8.42% before the trial to 6.05% after the trial, down 28.15% (2χ = 3.777, P <0.01); the positive rate of the cattle decreased 85% (2χ = 12.444, P <0.01) The mean density of live snails and the infection rate of snails decreased from 0.87 /0.11m2 and 0.71% before the trial to 0.86 /0.11m2 and 0.56% after the trial. Conclusion The preliminary evaluation of the effects shows that the comprehensive prevention and control measures mainly based on the control of the source of infection have a certain effect, and the elimination and management of livestock such as cattle and cattle still need to be strengthened.