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湖北省仙桃市刘家垸为典型的垸内封闭型血吸虫病流行区，其钉螺由围垸前残存钉螺繁衍而来；主要传染源为耕牛，人群感染方式与生产、生活有关，感染高峰年龄组为青、壮年。根据试区的环境与产业特征，经采取以兴林改变生态环境为主，辅以药物灭螺及加强耕牛、人群化疗等优化防治对策，各主要指标明显下降：１９９１年钉螺面积约２６．３３万ｍ￣２，阳性钉螺密度０．００３４只／框（每框面积＝０．１１ｍ２），耕牛感染率７２．２％，人群感染率１５．６％；１９９５年钉螺面积降至１９８ｍ￣２，未发现阳性钉螺，无耕牛感染，人群感染率降至０．２９％。
Liujia embankment in Xiantao City, Hubei Province, is a typical embankment enclosed schistosomiasis endemic area, and its snail is derived from surviving snails before the embankment. The main source of infection is cattle, and the mode of infection among the population is related to production and life. The peak infection age is Youth, prime of life. According to the environmental and industrial characteristics of the pilot area, the major indicators were significantly reduced after taking measures such as changing the ecological environment with Xinglin, supplemented by drug snail and strengthening cattle and population chemotherapy, and other key indicators decreased significantly: In 1991, snail area was about 26. 330000 m ~ 2, the positive snail density of 0.0034 / box (per box area = 0.11m2), cattle infection rate of 72.2%, the crowd infection rate of 15.6%; in 1995 snail area down to 198m ~ 2, did not find positive snails, no cattle infection, the population infection rate dropped to 0.29%.