Abstract:

Objective To analyze the endemic situation of schistosomiasis after its interruption of transmission in Xiuzhou District， Jiaxing City， Zhejiang Province， so as to provide the references for future surveillance work. Methods The data of schistosomiasis and Oncomelania hupensis snails in Xiuzhou District were collected and analyzed statistically. Results From 1994 to 2015， totally 975 village?times were investigated for O. hupensis snails， and the accumulated area of 4 385.31 hm2 was surveyed. Twenty former snail sites were reoccurring， with an area of 32.61 hm2. An area of 57.71 hm2 was supplied with snail eradication measures. Totally 11 941 snails were dissected and no schistosome infected snails were found. The serum and stool tests were performed to 221 794 and 3 731 residents respectively， and no local infection cases but four imported cases were found. Conclusion The endemic situation of schistosomiasis in Xiuzhou District is stable after the transmission was interrupted. However， there are imported schistosomiasis cases， and therefore， the prevention of imported infection source is the focus of surveillance work.

Key words: Schistosomiasis； Oncomelania hupensis snail； Transmission interruption； Surveillance； Jiaxing City

摘要：

目的 分析嘉兴市秀洲区血吸虫病传播阻断后疫情变化，为巩固监测工作提供依据。 方法 收集并分析1994-2015年嘉兴市秀洲区血吸虫病及螺情监测资料。 结果 1994-2015年全区查螺975村次，累计查螺面积4 385.31 hm2，发现复现螺点20个，有螺面积为32.61 hm2，灭螺面积57.71 hm2，解剖钉螺11 941只，无血吸虫感染性钉螺。血清学检查221 794人次，粪检3 731人次，未发现本地新感染病人（畜），但查出输入性病人4例。 结论 秀洲区达到血吸虫病传播阻断标准后疫情稳定，但有外来患者输入，防控外来传染源是监测巩固工作的重点之一。

关键词: 血吸虫病；钉螺；传播阻断；监测；嘉兴市