Abstract:

Objective To investigate the impact of Hexi Reservoir Project on schistosomiasis transmission, and put fowards schostosomiasis prevention and control strategies. Methods The hygienic evaluation of schistosomiasis due to the construction of Hexi Reservoir Project was conducted according to the National Regulation of Schistosomiasis Control. The date concerning the project design and schistosomiasis control in history were collected. A lot of information around the reservoir was got by an on-site inspection. The investigations on distribution of snails and morbidity of schistosomiasis were carried out. The effect of construction of Hexi Reservoir Project on schistosomiasis transmission was systematically evaluated. A series of prevention and control interventions against schistosomiasis were proposed according to the above investigations. Results  The construction of the Hexi Reservoir  Project had a dual character on schistosomiasis transmission, bringing more harm than good. On one hand, snails can be controlled in a localized region by construction of reservoir, on the other hand, schistosomiasis transmission may revive because of the possibility of snails breeding and spreading and imported infectious sources. In view of the situations mentioned above, active measurement must be taken to prevent the snails spreading and schistosomiasis cases importing caused by the construction of Hexi reservoir. Conclusions The construction of Hexi Reservoir Project may cause the revival of schistosomiasis transmission，and effective control measures must be carried out to reduce the risks.

Key words: Reservoir construction project, Schistosomiasis, Risk assessment, Intervention measure

摘要：

关键词: 水利工程, 血吸虫病, 风险评估, 干预措施