江苏省常熟市地处江南水乡,在上世纪50年代,常熟市为全国10个严重流行血吸虫病防治(血防)的重点县市之一,疫区人口达60余万,全市历史有螺面积10427万m2,患血吸虫病病人达20.8万余人。几十年来,经过全市人民和广大卫生血防工作人员的不懈努力,至1990年开始,我市成为传播阻断地区 Changshu City, Jiangsu Province, is located in Jiangnan Water Village, in the 50s of last century, Changshu City as one of the 10 major epidemic prevention and treatment of schistosomiasis (blood prevention) one of the key counties and cities, the affected area population of more than 60 million, the city has a history of snail area 10427 Million m2, suffering from schistosomiasis patients reached 20.8 million people. For decades, through the tireless efforts of the people in the city and the majority of health and blood-prevention workers, by the year 1990, the city became a communication-blocking area