人工湖等水利工程可能成为淡水螺的孳生地 ,增加人类及动物感染血吸虫的机会。作者在人工湖周围地区藁杆双脐螺的发生和分布的流行病学调查的基础上 ,研究了藁杆双脐螺对曼氏血吸虫毛蚴的敏感性。根据最近两年来螺的种群研究结果 ,选择湖区周围曼氏血吸虫病主要流行的地区进行 Water conservancy projects such as artificial lakes may become a breeding ground for freshwater snails and increase the chances of human and animal infection of schistosomiasis. Based on the epidemiological investigation of the occurrence and distribution of the double snails in the area around the artificial lake, the authors studied the sensitivity of the double snails to the schistosome larvae. According to the results of the stud study on snails in the recent two years, the area around the lake area where major schistosomiasis is endemic