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目的掌握绵阳市血吸虫病疫情动态和影响因素,为制定防治措施提供依据。方法根据《全国血吸虫病监测方案(2014年版)》的要求,在6个血吸虫病流行县各选择1个疫情较重的村作为国家级血吸虫病监测点,分别开展人群及家畜病情和螺情调查。结果本地人群的血吸虫病血检阳性率为2.12%,流动人口血检阳性率为1.71%,家畜感染率为0。6个监测点查出有螺面积9.344 8 hm~2,活螺平均密度为0.25只/0.1 m~2,有螺框出现率为7.07%,未发现感染性钉螺。结论绵阳市国家级血吸虫病监测点人畜感染率低、螺情稳定,但血吸虫病传播风险仍存在,应加强控制措施,防止疫情反弹。
Objective To grasp the epidemic situation of schistosomiasis in Mianyang and its influencing factors, and to provide the basis for making prevention and control measures. Methods According to the requirements of the National Schistosomiasis Surveillance Program (2014 Edition), one epidemic-prone village in each of the six schistosomiasis endemic counties was selected as the national schistosomiasis monitoring spot, and the population and domestic animal diseases and the snail investigation . Results The prevalence of schistosomiasis was 2.12% in the local population, 1.71% in the floating population, and 9.344 8 hm ~ 2 in the surveillance area of 0.6. The average density of live snails was 0.25 /0.1 m ~ 2, screw frame rate was 7.07%, found no infectious snails. Conclusion The infection rate of human and animal in national schistosomiasis monitoring stations in Mianyang City is low, and the snail is stable. However, the risk of transmission of schistosomiasis still exists. Control measures should be strengthened to prevent the epidemic from rebounding.