中国血吸虫病防治杂志

• 防治经验 •    

2005-2012年鄱阳湖北岸都昌县钉螺消长态势分析

曹换利1|李宜锋2|邹小青1|余春九1|张宝龙1|吕尚标2*   

  1. 1 江西省都昌县血吸虫病防治站(都昌 332600); 2 江西省寄生虫病防治研究所
  • 出版日期:2014-12-30 发布日期:2014-12-30
  • 通讯作者: 吕尚标

Growth and decline of Oncomelania hupensis status in Duchang County at North shore of Poyang Lake| 2005-2012

CAO Huan?li1| LI Yi?feng2| ZOU Xiao?qing1| YU Chun?jiu1| ZHANG Bao?long1| LV Shang?biao2*   

  1. 1 Duchang County Station of Schistosomiasis Control| Jiangxi Province| Duchang 332600| China; 2 Jiangxi Provincial Institute of Parasitic Diseases| China
  • Online:2014-12-30 Published:2014-12-30
  • Contact: LV Shang?biao2

摘要:

目的 了解鄱阳湖北岸都昌县钉螺消长趋势,为制定血吸虫病防治策略提供依据。方法 收集2005-2012年都昌县的螺情资料,分析其变化趋势。结果 2005-2012年,都昌县活螺平均密度、活螺框出现率、感染螺密度和感染螺面积均呈大幅下降态势,并维持在较低水平,与2005年相比,2008年上述指标分别下降了70.06%、90.33%、79.48%和37.88%,2012年则分别下降了99.35%、98.98%、99.33%和93.93%。钉螺感染率在0.06%~0.53%间波动,呈先降后升态势。自2007年起,各年有螺面积保持在2 052.5 hm2不变。结论 至2012年都昌县多数螺情指标均降至历史最低值,但有螺面积未见减少,钉螺感染率呈波动态势,提示血吸虫病传播风险仍然存在,仍需加强钉螺控制。

关键词: 钉螺;消长;鄱阳湖北岸;都昌县

Abstract:

Abstract] Objective To understand the dynamic of Oncomelania hupensis snail status in Duchang County at north shore of Poyang Lake , so as to provide the evidence for formulating the strategy of schistosomiasis control. Methods The data about the snail status in Duchang County from 2005 to 2012 were collected, and the change trend of the snail status was analyzed. Results From 2005 to 2012, all the average density of living snails, the occurrence rate of frames with living snails, the density of infected snails and the area with infected snails showed a trend of sharp decline, and stayed at a low level. Compared to 2005, the above 4 indexes in 2008 decreased by 70.06%, 90.33%, 79.48%, and 37.88%, respectively, and those in 2012 decreased by 99.35%, 98.98%, 99.33%, and 93.84%, respectively. The infection rates of snails fluctuated between 0.06% and 0.53%, which showed a trend of first decrease and then increase. The snail area maintained at the level of 2 052.5 hm2 since 2007. Conclusions Most of the indexes of the snail status in Duchang County have decreased to the lowest level in history since 2012, but the snail area is stable and the infection rate of snails shows a fluctuation trend, which suggests that the risks of schistosomiasis transmission still exist, and the snail control still should be strengthened.

Key words: Oncomelania hupensis; Growth and decline; North shore of Poyang Lake ; Duchang County

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