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目的了解三峡库区万州段血吸虫病及其潜在流行因素,为制定库区血吸虫病预防控制措施提供科学依据。方法根据《全国血吸虫病疫情监测方案》要求,在2005-2007年间选择重庆市万州区全国血吸虫病监测点区域内,开展血吸虫病疫情监测及血吸虫病潜在流行因素钉螺与家畜感染输入情况的监测。结果本地居民无血吸虫病例报告,居民血吸虫病血清抗体阳性检出率为0.78%,外出疫区返乡人员血清抗体阳性检出率为2.10%,疫区来万州人员血清抗体阳性检出率为1.97%。在万州段港口码头、船坞、沟壑、洲滩以及水生动植物的饲养繁殖场所开展钉螺输入调查,调查结果发现库区存在钉螺输入因素,但暂未发现有钉螺输入。库区117份牛血清IHA检测结果均为阴性。结论重庆三峡库区万州段存在着潜在血吸虫病输入传染源和血吸虫病流行的相关因素,三峡成库后的生态环境变化及居民生产生活习惯为血吸虫病的传播提供了有利条件,提示应重点加强监测与防控。
Objective To understand the schistosomiasis and its potential epidemic factors in Wanzhou section of the Three Gorges Reservoir Area and provide a scientific basis for the development of prevention and control measures for schistosomiasis in the reservoir area. Methods According to the requirements of “National Schistosomiasis Surveillance Program”, the surveillance of schistosomiasis surveillance in schistosomiasis surveillance area of Wanzhou District of Chongqing Municipality was selected from 2005 to 2007, and the potential epidemic factors of schistosomiasis infection were monitored. Results There were no cases of schistosomiasis reported by local residents. The positive rate of seropositivity of residents was 0.78%, and the positive rate of seropositive antibody was 2.10% among those returning from out-endemic areas. The positive rate of serological antibodies in Wanzhou was 1.97 %. In the Wanzhou section of the port docks, docks, ravines, beaches and aquatic animals and breeding breeding sites carry snail import survey, the survey found that there are snail input factors in the reservoir area, but yet found snail input. 117 bovine serum IHA test results were negative in the reservoir area. Conclusion There are some related factors of the possible source of schistosomiasis infection and the prevalence of schistosomiasis in Wanzhou section of Three Gorges Reservoir in Chongqing. The ecological environment changes and the production and living habits of residents in the Three Gorges Reservoir provide favorable conditions for the transmission of schistosomiasis, suggesting that the focus should be strengthened Monitoring and Prevention.