Chin J Schisto Control ›› 2017, Vol. 29 ›› Issue (2): 209-211.

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Surveillance with sentinel mice in key water areas of schistosomiasis endemic regions in Yunnan Province, 2015

SHEN Mei-fen*| FENG Xi-guang| ZHANG Yun| WU Ming-shou| XIONG Meng-tao| SONG Jing   

  1. Yunnan Institute of Endemic Diseases Control and Prevention| Dali 671000| China
  • Online:2017-04-22 Published:2017-04-23

2015年云南省血吸虫病流行区重点水域哨鼠监测结果分析

沈美芬*|冯锡光|张云|吴明寿|熊孟韬|宋静   

  1. 云南省地方病防治所(大理 671000)
  • 作者简介:沈美芬|女|本科|主管医师。研究方向:血吸虫病防治

Abstract: Objective To carry out the surveillance with sentinel mice in the key water areas of schistosomiasis endemic regions in Yunnan Province, so as to establish and perfect the surveillance and forecast system of schistosomiasis. Methods Six villages of three counties with schistosomiasis heavy endemic status were selected as the survey points. Then, the surveillance and forecast with the sentinel mice were carried out in the key water areas in the survey points. The recovered sentinel mice were dissected in laboratory, and their serum antibodies against schistosome were detected. Meanwhile, the suspicious infested water contacts of the residents and livestock in the surveillance sites were investigated, and the endemic data of schistosomiasis in the survey points in recent 3 years were collected and analyzed. Results Totally 282 sentinel mice were placed in the water area, 252 were recovered, with a recovery rate of 90.78%, and 8 mice were dead, with a mortality rate of 3.13%. The number of mice with schistosome egg granuloma and adult worm detected were both 0, and the worm burden and the positive rate of serum antibodies against schistosome were both 0, too. The persons who contacted with the suspicious infested water were mainly villagers and students by harvesting and playing. The Oncomelania hupensis snail areas, the infection rates of residents and livestock were obviously declined in recent 3 years. Conclusions There are no positive sentinel mice found in the key water areas of the surveillance sites in Yunnan Province, which suggests that the schistosome infection risk of residents and livestock is low. However, the comprehensive control measures, surveillance and forecast with sentinel mice in the key water areas of schistosomiasis endemic regions still should be strengthened.

Key words: Schistosomiasis; Sentinel mouse; Infested water; Surveillance; Yunnan Province

摘要: 目的 在云南省部分血吸虫病流行区开展重点水域哨鼠监测,以提升血吸虫病监测系统的敏感性、完善监测预警机制。方法 选择3个疫情较重县(市)的6个自然村作为监测点,开展重点水域哨鼠预警监测。对回收饲养后成活的哨鼠进行解剖观察,检测血清抗体水平,并观察监测点人畜疫水接触情况。此外,收集近3年来监测点疫情资料并进行分析。结果 共投放哨鼠282只,回收256只,死亡8只,总回收率90.78%,总死亡率3.13%。有虫卵肉芽肿结节的哨鼠数、检获成虫数、虫荷数,以及血清抗体阳性率均为0。接触疫水人员主要为村民和学生,接触方式主要为收种作物和戏水。近3年来,监测点钉螺面积、人群感染率和耕牛感染率均呈下降趋势。结论 云南省3个监测县(市)均未发现血吸虫感染阳性哨鼠,人畜感染血吸虫的风险较低。但加强重点水域的哨鼠预警监测,继续落实以传染源控制为主的综合防治措施,仍应是今后血防工作的重点。

关键词: 血吸虫病;哨鼠;疫水;监测;云南省

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