Abstract:

  Objective  To understand the dynamic of schistosomiasis endemic in the engineering areas of South-North Water-Diversion Middle-Line Project. Methods  The schistosomiasis endemic in the engineering areas of 3 counties (cities) was investigated according to the unified research protocol. Results   There were 213. 23 hm2 snail areas, 270 chronic schistosomiasis patients and 2 acute cases, and a new snail habitat. Conclusion  In the engineering area, the snail areas are increasing year by year but the density of snails is reducing, and there is a potential risk for schistosomiasis transmission. 

Key words: South-North Water-Diversion, Schistosomiasis, Epidemic factor

摘要：

目的  了解南水北调中线引江济汉水利工程区对血吸虫病疫情动态变化，为制定防治对策提供依据。方法制定统一的调查方案，调查3个县（市、区）工程区渠道两边1000 m范围内的疫情。结果2006年工程区域内现有钉螺面积213. 23 hmz，慢性血吸虫病人270例，新发急性血吸虫感染2例和1处新发现螺区。结论工程区钉螺面积逐年大，但钉螺密度逐年降低。工程区存在血吸虫病流行的潜在威胁。

关键词:  南水北调；血吸虫病；流行因素