在水中,吡喹酮可迅速引起血吸虫尾蚴脱尾,尾蚴体逐渐肿大和死亡。若经吡喹酮作用0.5h的脱尾尾蚴体移置含2％小牛血清的亨氏盐平衡溶液中继续培养时,虫体皆恢复正常活动,且对水的敏感性增加,前、后钻腺的内容物排出,以及尾蚴膜反应和对补体的敏感性消失,表明这些脱尾的尾蚴体已具有童虫的特征。 In the water, praziquantel can quickly cause cercariae tail off, cercariae gradually enlarged and died. If the cercosporidium of 0.5h after praziquantel removal of 2% fetal bovine calf serum Heinz’s salt balance solution to continue training, the worms are restored to normal activity, and increased sensitivity to water, before and after drilling The glandular contents were excreted and the cercariae membrane reaction and the loss of sensitivity to complement disappeared, indicating that these tail-debated cercariae had the characteristics of a schistosomula.