Abstract: Objective To investigate the risk factors of schistosomiasis transmission in Jingmen City. Methods The Oncomelania hupensis snails， the wild animal feces， and infection source were selected as the monitoring objects to carry out the schistosomiasis risk monitoring. I?III levels of risk environments were treated with appropriate measures. Results A total of 52 environments and three water systems were monitored and 1 542 snails were dissected but no Schistosoma infected snails were found. Nine fecal samples were collected from the areas with snails， and no eggs of Schistosoma were found. Eighty?nine samples of cattle/sheep faces， and mice and dogs were collected， and three samples of cattle feces were found with Schistosoma eggs. Five environments were assessed as Grade II， and 48 environments were assessed as Grade III， and 2 environments were assessed as no risk of schistosomiasis transmission. Conclusions In Jingmen City， the mollusciciding work from May to June could decrease the density of snails and the risk of schistosomiasis transmission efficiently. The schistosome?infected cattle were the main infection source， and therefore， the cattle and snails should be administrated simultaneously.

Key words: Schistosoma japonicum； Transmission risk； Surveillance； Jingmen City

摘要： 目的 分析荆门市血吸虫病传播风险因素，预警血吸虫病传播风险。方法 将钉螺、野粪、动物传染源作为监测对象开展传播风险监测，评定I~III级风险环境，采取相应措施进行处理。结果 共监测52处环境和3条水系，解剖钉螺1 542只，未发现血吸虫感染性钉螺。采集有螺区野粪样本9份，未发现血吸虫卵。采集血吸虫病流行区牛、羊粪便和捕捉鼠、犬样本89份，发现3份牛粪血吸虫卵阳性。评定II级传播风险5处， III级传播风险48处，无传播风险2处。结论 快速高效的药物灭螺可使钉螺密度大幅降低，有效降低了血吸虫病的传播风险。病牛是荆门市血吸虫病的主要传染源，建议实施牛?螺同步控制策略。

关键词: 日本血吸虫；传播风险；监测；荆门市