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血吸虫感染与病情之间关系的研究湖区已见报道[1－3]。云南的血吸虫病经过多年防治，尤其是世行贷款血防项目及“八五”血防规划的实施，取得很大成绩，感染率大幅度下降。为进一步了解现阶段血吸虫病病情状况，我们结合1995年开展的血吸虫病抽样调查工作，对云南省大山区血吸?
The relationship between schistosomiasis and the disease lake area has been reported [1-3]. After many years of prevention and treatment of schistosomiasis in Yunnan Province, especially the implementation of World Bank-financed blood-prevention projects and the “Eighth Five-Year Plan for Prevention of Blood Diseases”, great achievements have been made and the infection rate has dropped significantly. In order to further understand the current situation of schistosomiasis condition, we combined with the sample survey of schistosomiasis conducted in 1995,