据报告［1～3］，口服蒿甲醚有降低血吸虫感染率，防止急性血吸虫病的作用。为此，在目坪湖对渔民实施了口服蒿甲醚预防血吸虫感染的观察。1方法1．1观察对象及分组选择15～60岁常年在湖洲活动的渔民452人，根据年龄、性别分层随机抽样，分成蒿甲醚组224人和对照组228人。两组 According to the report [1 ~ 3], oral administration of artemether reduce the infection rate of schistosomiasis, to prevent the role of acute schistosomiasis. To this end, in Lake Ping Lake fishermen implemented oral administration of artemether to prevent the infection of schistosomiasis. 1 Methods 1.1 Observation objects and group selection of 45 to 60 year-old perennial fishermen living in Lake Island, according to age and sex stratified random sampling, divided into artemether group 224 and control group of 228 people. Two groups