三峡工程运行对南京市血吸虫病疫情及防控的影响

发布时间：2018-08-31 08:38

【摘要】：目的分析长江三峡工程运行对长江南京段水位变化及其沿江地区血吸虫病疫情的影响,为制定适宜的防控策略提供科学依据。方法收集2002-2012年长江南京段代表性水文站水情资料,以及沿江地区血吸虫病病情和螺情资料,分析长江三峡工程运行后血吸虫病疫情变化趋势。结果长江三峡工程运行后,1-4月长江南京段水位较建坝前略有上升,春季(5月)和汛期(8月)平均水位较建坝前明显降低,且汛期退水时间提前,11-12月水位较建坝前略有下降。三峡工程运行以来,南京市沿江地区血吸虫病疫情总体呈下降趋势;2012年居民和耕牛感染率分别较建坝前(2002年)下降了100%,2012年钉螺面积、感染性钉螺面积和钉螺平均密度分别较建坝前(2002年)下降了48.45%、100%和95.76%。结论三峡工程运行后,南京市沿江地区血吸虫病疫情总体呈逐年下降趋势,但仍需开展长期的监测工作。
[Abstract]:Objective to analyze the influence of the operation of the three Gorges Project on the changes of water level and the epidemic situation of schistosomiasis along the Yangtze River in Nanjing, so as to provide scientific basis for the formulation of appropriate prevention and control strategies. Methods the hydrological data of representative hydrological stations in Nanjing section of the Yangtze River from 2002 to 2012 were collected, and the data of schistosomiasis and schistosomiasis in the Yangtze River region were collected, and the trend of schistosomiasis epidemic situation after the operation of the three Gorges Project of the Yangtze River was analyzed. Results after the operation of the three Gorges Project, the water level in Nanjing section of the Yangtze River increased slightly in January to April, and the average water level in spring (May) and flood season (August) was obviously lower than that before the construction of the dam, and the water level in November to December in advance of flood season was slightly lower than that before dam construction. Since the operation of the three Gorges Project, the epidemic situation of schistosomiasis along the Yangtze River in Nanjing City has generally decreased. The infection rates of residents and cattle in 2012 were 100% lower than those before the construction of the dam (2002), and the snail area in 2012 was 100% lower than that before the construction of the dam. The area and average density of infected snails decreased by 48.45% and 95.76%, respectively, compared with those before the construction of the dam (2002). Conclusion after the operation of the three Gorges Project, the epidemic situation of schistosomiasis in Nanjing area along the Yangtze River is decreasing year by year, but it is still necessary to carry out long-term surveillance work.
【作者单位】：江苏省南京市疾病预防控制中心;
【分类号】：R532.21

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