Abstract: Objective Objective To evaluate the protective effect of Fangyouling（extracted from herb）on Schistosoma japonicum in? fection in the field. Methods Methods The residents in 2 villages，Zhaonao Village and Miaochang Village，were divided into Group A （139 persons）and Group B（162 persons），and the residents in Group A embrocated Fangyouling before their contacting the in? fested water and the residents in Group B did not. All the residents were investigated with questionnaires，and received the blood and stool examinations for schistosomiasis. Results Results The positive rates of blood tests were 3.13% and 9.34% in Group A and Group B respectively, the positive rates of stool examinations were 1.92% and 6.44% in Group A and Group B respectively（both P values < 0.05） . Conclusion Conclusion Fangyouling has a good protective effect on S. japonicum infection.

Key words: Schistosomiasis；Fangyouling；Botanical medicine； Protective effect

摘要： 目的 目的 观察抗血吸虫感染新植物药防蚴灵现场防护效果。方法 方法 选择湖北省潜江市熊口镇赵脑村和瞄场村村 民为研究对象， 接触疫水前涂擦防蚴灵的村民作为实验组 （A组）， 未涂擦村民为对照组 （B组）。对两组村民进行问卷调 查， 并进行保护率 （血检和粪检） 比较。结果 结果 A组共调查139人， 血检阳性率为3.13％， 粪检阳性率为1.92％； B组共调查 162人， 血检阳性率为9.34％， 粪检阳性率为6.44%， 两组各率间差异均有统计学意义 （P均＜0.05）。结论 结论 防蚴灵具有 较好的现场防护血吸虫感染作用。

关键词: 血吸虫病； 防蚴灵； 植物药； 防护效果