Methods The immature eggs were cultivaed with sera from mice immuned by Schistosome japonicum soluble immature egg (SIEA) and infected later or normal infected sera respectively.

• 方法小鼠再感染日本血吸虫尾蚴用SIEA免疫后49天，实验组收集该免疫血清培养日本血吸虫未成熟卵。