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目的根据湖南省2011~2016年开展的3次垸内钉螺普查,对全省垸内钉螺的流行类型进行描述性分析,了解其变化趋势,为进一步降低垸内钉螺面积提供科学对策。方法收集2011年、2014年和2016年湖南省垸内钉螺普查的数据进行统计分析。结果湖南省垸内钉螺面积与环境处数在2011~2014年下降明显,2014~2016年下降趋缓;2016年全省垸内无新发和复发钉螺面积,3次普查均未查到感染性钉螺。全省现有垸内钉螺流行类型以湖沼型和山丘型为主。结论与2011年和2014年相比,2016年湖南省垸内钉螺面积继续呈下降趋势。全省应继续实施药物灭螺、沟渠硬化和国土平整等综合性防治措施,有效减少垸内钉螺面积,切断血吸虫病传播途径。
OBJECTIVE According to three snail surveys carried out in Hunan Province from 2011 to 2016, a descriptive analysis of the prevalence of snails in the embankments of the province was carried out to understand the trend of the snail snails and provide scientific measures for further reducing the snail snail area in the embankment. Methods The data of snails in Hunan Province in 2011, 2014 and 2016 were collected for statistical analysis. Results In Hunan Province, the area of snail and its environment in the embankment decreased significantly from 2011 to 2014, and decreased slowly from 2014 to 2016. In 2016, there was no new or recurrence of snail in the embankment, and no infectivity was found in the three censuses Snails. The province’s existing snail snail flow types to Lake Marsh and Hill-based. Conclusion Compared with 2011 and 2014, the snail area in Hunan embankment in 2016 continued to decline. The province should continue to implement comprehensive control measures such as drug snail elimination, ditch hardening and land leveling to effectively reduce the snail area in the embankment and cut off the transmission route of schistosomiasis.