由于血吸虫对主要化疗药物产生抗性 ,控制血吸虫传播媒介的防治措施又重新得到重视。控制血吸虫传播媒介的方法主要有 :使用合成的灭螺药 (如氯硝柳胺 )和从植物中提取的灭螺药 ;改变它们的自然栖息地以及利用这些宿主的天敌或竞争者。为了解螺类媒介对血吸虫的敏感性 ,人们已 Because schistosomiasis is resistant to major chemotherapeutic drugs, control measures for the control of schistosomula are re-emphasized. The main methods of controlling schistosomula are to use synthetic molluscides (such as niclosamide) and molluscides extracted from plants; to change their natural habitat and to use natural enemies or competitors of these hosts. To understand the sensitivity of the snail to schistosomes, people have