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目的掌握江阴市血吸虫病传播阻断后流行因素的动态变化,为制定防治策略提供依据。方法采用系统抽样结合环境抽查法进行钉螺普查、轮查和抽查;采用血清学和粪便检查等方法对疫区常住人口以及外来流动人员开展查病。结果 1982—2013年,累计查螺面积3 943.84 hm2,仅1991年和2000年在2个村发现2处钉螺,钉螺面积60 050 m2;共解剖钉螺3 500只,未发现阳性钉螺。累计查病175 929人次,阳性6例(均为外地感染);家畜412头次,无阳性。结论江阴市血吸虫病疫情稳定,但仍需加强监测和防治。
Objective To master the dynamic changes of epidemic factors after the transmission of schistosomiasis in Jiangyin City and provide the basis for the prevention and control strategies. Methods Systematic sampling and environmental sampling were used to conduct snail surveys, wheel rounds and spot checks. Serological tests and stool tests were conducted to detect the resident population and migrants in the affected areas. Results From 1982 to 2013, a total of 3 943.84 hm2 of snails were found. Only two snails were found in 2 villages in 1991 and 2000 with an area of 60 050 m2. A total of 3 500 snails were dissected and no positive snails were found. A total of 175,929 person-times of check-ups were found, 6 were positive (all were field-infected); 412 were domestic animals without positive results. Conclusion The epidemic situation of schistosomiasis in Jiangyin is stable, but monitoring and prevention still need to be strengthened.