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目的研究大山区高山型重疫区血吸虫病优化防治对策。方法对一高山型重疫村前３年实施以人、畜化疗为主，辅以易感地带灭螺；后２年实施以灭螺为主，辅以清查治疗传染源的分阶段优化防治措施。结果通过连续５年前后两个阶段不同措施的防治，第１阶段人、牛感染率，钉螺面积分别下降７７．２７％、６９．１４％和４９．８６％，第２阶段分别下降９５．５０％、９０．０２％和９２．０１％；低年龄组人群新感染率由防治前的７．８１％降为零。结论分阶段针对性地实施不同优化措施能迅速且稳定地控制血吸虫病传播。
Objective To study the optimal control strategies for schistosomiasis in the mountainous heavy endemic area of Dashan Mountain. Methods In the first 3 years of a mountainous and recurrent village, human and animal medicine were mainly used, supplemented by susceptible zone for snail elimination. In the latter 2 years, snail-dominated and supplemented by inventory were used to optimize the control measures . Results Through the prevention and treatment of different measures in two stages after five years in succession, the infection rate and the area of snails decreased by 77.27%, 69.14% and 49.86% respectively in the first stage, and decreased by 95.50% in the second stage %, 90.02% and 92.01%, respectively. The prevalence of new infections in the low-age group dropped from 7.81% before prevention to zero. Conclusions The different optimization measures in stages can control the spread of schistosomiasis rapidly and steadily.