实验研究发现血吸虫尾蚴白天从螺逸出 ,中午是高峰 ,晚上没有明显的逸出 ,尾蚴的存活率和感染率呈进行性下降。这一发现有助于了解一天 (2 4小时 )中人接触疫水受感染的危险度 ,为更贴近自然感染环境 ,研究人员对曼氏血吸虫尾蚴逸出后感染人类皮肤的情况进行了研究。研究表明逸 Experimental study found that schistosome cercariae escape from the snail during the day and noon is the peak, no significant escape at night, cercariae survival and infection rates showed a progressive decline. This finding helps to understand the risk of human exposure to contaminated water in one day (24 hours). To better understand the natural environment, researchers investigated the human skin infection after the human cercariae of Schistosoma mansoni escaped. Research shows that Yi