Abstract: Objective To understand the dynamics of schistosomiasis situation so as to provide the evidence for formulating the prevention and control scheme in Erlang Village，Yueyang County，Hunan Province. Methods The schistosomiasis preva? lence and Oncomelania snail status were investigated from 2005 to 2012. Results The schistosome infection rates of the residents decreased from 2.76% in 2005 to 0.54% in 2012 and the decline rate was 80.43%；the infection rates of the livestock decreased from 8.70% in 2005 to 0 in 2012. No snails were found in the inner embankment over the eight?year period. The density of the in? fected snails was 0.000 5 per 0.1 m2 in 2005，but no positive snails were found from 2009 to 2012 outside the embankment. Con? clusion The schistosome infections of people and livestock and the status of the intermediate host snails have achieved the crite? ria of schistosomiasis transmission control.

Key words: Schistosomiasis； Epidemic situation； Monitor； Yueyang County； Erlang Village

摘要： 目的 目的 掌握岳阳县二郎村螺情、 血吸虫病人畜病情变化规律， 为制定血吸虫病防治规划提供科学依据。方法 方法 2005-2012年连续8年对二郎村进行螺情、 血吸虫病病情监测。结果 结果 二郎村人群血吸虫感染率从2005年的2.76%下降到 2012年的0.54%， 下降幅度为80.43%； 家畜血吸虫感染率从2005年的8.51%下降到2012年的0。垸内连续8年未发现钉 螺， 垸外感染性钉螺密度2005年为0.000 5只/0.1 m2 ， 之后持续下降， 2009-2012年连续4年未发现感染性钉螺。结论 结论 二 郎村螺情、 人畜病情指标已达到血吸虫病传播控制标准。

关键词: 血吸虫病； 疫情； 监测； 岳阳县； 二郎村