目的了解浙江省嘉兴市血吸虫病疫情监测动态和流行现状,为制定嘉兴市水网型地区血吸虫病防控策略提供参考依据。方法 2011-2014年每年采用机械抽样结合环境抽样查螺法对历史有螺区实行普查、轮查和重点环境抽查;采用血清学间接血凝试验(IHA)对当地残存传染源、外来输入性传染源进行筛检,阳性者粪检追查。用χ2检验方法分析血清学监测阳性率。结果浙江省嘉兴市3个县(市、区)查出复现钉螺面积22.61 hm2,捕获并解剖钉螺19 861只,无感染性钉螺。血清学查病79 288人(次),阳性571人,阳性率0.72%,本地人群监测阳性率为0.92%,流动人群监测阳性率为0.69%,两者之间的血清学阳性率差异有统计学意义(χ2=7.22,P=0.007);2011-2014年间的人群血清学阳性率差异有统计学意义(趋势χ2=8.29,P=0.004)。粪检追查到输入性病例3例,无本地病例。结论近几年浙江省嘉兴市血吸虫病疫情稳定,但重点场所的螺情监测,主动发现和控制输入性可疑传染源仍十分重要。 Objective To understand the status and prevalence of schistosomiasis surveillance in Jiaxing City, Zhejiang Province, and provide reference for the development of schistosomiasis prevention and control strategies in the water network of Jiaxing City. Methods From 2011 to 2014, we conducted a survey, round-robin survey and key environmental sampling on the spiraled-zone of history using mechanical sampling combined with environmental sampling and snail inspection. The indirect residual hemagglutination test (IHA) Source screening, positive fecal seized. The χ2 test was used to analyze the positive rate of serological surveillance. Results In three counties (cities and districts) of Jiaxing City, Zhejiang, snail snail area 22.61 hm2 was recovered, 19 861 snails were captured and dissected, and non-infected snails were found. 79 288 serological tests, 571 were positive, the positive rate was 0.72%, the local population monitoring positive rate was 0.92%, the floating population monitoring positive rate was 0.69%, the positive rate of the difference between the two statistics (Χ2 = 7.22, P = 0.007). There was a significant difference in the seroprevalence of the population between 2011 and 2014 (trend χ2 = 8.29, P = 0.004). Fecal seizure traced cases of imported 3 cases, no local cases. Conclusions In recent years, the epidemic situation of schistosomiasis in Jiaxing City of Zhejiang Province has been stable. However, it is still very important to detect and control the imported suspicious source of infection in key places.