Chin J Schisto Control ›› 2015, Vol. 27 ›› Issue (6): 583-.DOI: 10.16250/j.32.1374.2015147

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Impact of implementation of Three Gorges Project on schistosomiasis endemic situation and control in Nanjing City

XIE Chao-yong*| YANG Pei-cai| WANG Yu   

  1. Nanjing Center for Disease Control and Prevention| Jiangsu Province| Nanjing 210003| China
  • Online:2015-12-22 Published:2015-12-22

三峡工程运行对南京市血吸虫病疫情及防控的影响

谢朝勇*|杨佩才|王毓   

  1. 江苏省南京市疾病预防控制中心 (南京 210003)
  • 作者简介:谢朝勇| 男| 本科| 副主任医师。研究方向: 血吸虫病、 寄生虫病防制

Abstract: Objective To understand the changes of hydrological regime in the Yangtze River and schistosomiasis endemic situation in Nanjing City after the implementation of Three Gorges Project. Methods The data of hydrological regime of the Yangtze River, schistosomiasis epidemic situation, and Oncomelania hupensis snail status were collected and analyzed in Nanjing City from 2002 to 2012. Results After the implementation of the Three Gorges Project in 2003, the water level of the Yangtze River slightly rose from January to April, the average water levels in May and August both reduced compared with those in 2002, and the time of water withdrawal was moved up. The water level of the Yangtze River slightly reduced from November to December. The endemic situation of schistosomiasis showed a decline tendency in the areas along the Yangtze River in Nanjing City. In 2012, the rates of human and bovine infected with Schistosoma japonicum both reduced by 100% as compared with those in 2002, and the snail area, infected snail area and snail density were reduced by 48.45%, 100% and 95.76% respectively as compared with those in 2002. Conclusion After the implementation of the Three Gorges Project, the schistosomiasis endemic situation shows a decline tendency in the areas along the Yangtze River in Nanjing City, but the long?term monitoring still need to be carried out.

Key words: Schistosomiasis; Three Gorges Project; Endemic situation; Nanjing City

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。

关键词: 血吸虫病;三峡工程;疫情;南京市

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