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1992～1995年，南洞庭湖洲垸型血吸虫病高危险区流行因素及防制对策研究结果表明，试区大堤外洲100m内是人畜感染血吸虫病的高危险区域．在易感季节在高危险区及进水闸口分别采用氧硝柳胺缓释药九和药网杀灭尾蚴，化疗人畜，居民血吸虫病感染率下降了86．44％，急性血吸虫病发病率下降了81．25％．
From 1992 to 1995, the epidemic factors and control strategies of schistosomiasis in embankment in South Dongting Lake embankment showed that the high risk area of schistosomiasis in humans and animals was within 100m in the embankment. In susceptible season in the high-risk areas and the inlet respectively with oral delivery of niclosamide sustained-release drug nine and drug cures kill cercariae, chemotherapeutic animal, resident schistosomiasis infection rate decreased by 86.44%, the incidence of acute schistosomiasis decreased 81.25%.