中国媒介生物学及控制杂志 ›› 2011, Vol. 22 ›› Issue (5): 492-494.

• 调查研究 • 上一篇    下一篇

2010年开江县登革热蚊媒监测结果分析

廖东1, 刘自远2, 刘成福2, 崔连莹2, 吴文波2, 赵佳2   

  1. 1. 达州市疾病预防控制中心疾病控制科,四川达州 635000;
    2. 开江县疾病预防控制中心,四川开江 636250
  • 收稿日期:2011-05-16 出版日期:2011-10-20 发布日期:2011-10-20
  • 通讯作者: 刘自远,Email: kjxlzy@163.com
  • 作者简介:廖东(1971-),男,主管医师,主要从事蚊媒传染病防制工作。

Analysis of surveillance data on dengue mosquitoes in Kaijiang county, 2010

LIAO Dong1, LIU Zi-yuan2, LIU Cheng-fu2, CUI Lian-ying2, WU Wen-bo2, ZHAO Jia2   

  1. 1. Dazhou Center for Disease Control and Prevention, Dazhou 635000, Sichuan Province, China;
    2. Kaijiang Center for Disease Control and Prevention, Kaijiang 636250, Sichuan Province, China
  • Received:2011-05-16 Online:2011-10-20 Published:2011-10-20

摘要:

目的 掌握开江县登革热蚊媒种群动态变化和分布特征,为其防制提供科学依据。方法 2010年6-10月对开江县不同生境采用容器法对白纹伊蚊幼虫容器指数调查,采用人诱法捕捉成蚊,计算成蚊密度。结果 调查积水容器共2639处,白纹伊蚊幼虫阳性165处,蚊幼阳性容器指数平均为6.25%,6-10月蚊幼阳性容器指数在1.65%~12.07%,各月比较差异有统计学意义(χ2=71.50,P<0.01)。不同生境中,蚊幼阳性容器指数以特殊场所最高(38.83%),其次是山林地(18.18%)和养殖耕种区(16.53%),其他在2.40%~6.69%,不同生境比较差异有统计学意义(χ2=271.89,P<0.01)。不同积水容器中蚊幼阳性容器指数以废旧轮胎最高(38.83%),其他积水容器在2.03%~12.77%,不同容器比较差异亦有统计学意义(χ2=216.05,P<0.01)。白纹伊蚊成蚊总密度为4.47只/人工小时,6-10月为2.67~6.50只/人工小时,各月比较差异无统计学意义(t=0.09~1.31,P>0.05)。不同生境中,以山林地最高(9.60只/人工小时),其次是养殖耕种区(7.40只/人工小时)和特殊场所(5.80只/人工小时),均显著高于其他环境(1.00~2.00只/人工小时)(t=2.78~3.64,P<0.05)。结论 登革热媒介白纹伊蚊在开江县广泛存在,应做好登革热预防控制措施。

关键词: 登革热, 白纹伊蚊, 容器指数, 种群密度

Abstract:

Objective To identify the dynamics and distribution of the dengue mosquito population in Kaijiang county, Sichuan province for effective dengue fever control and prevention. Methods The container index of Aedes albopictus mosquitoes was examined at different habitats of Kaijiang county from June to October, 2010. Adult mosquitoes were captured on human baits to calculate the adult mosquito density. Results The average container index of mosquito larvae was 6.25% after investigation of 2639 water containers and 165 positive habitats. This index ranged from 1.65% to 12.07% from June to October with difference between months (χ2=71.50,P<0.01). As for different habitats, the highest index was found in special habitats (38.83%), followed by mountainous woods (18.18%), and farmland (16.53%), while others ranged between 2.40% to 6.69% in other places, with statistically significant differences (χ2=271.89,P<0.01). As for containers, the highest index was found in waste tires (38.83%), while others ranged from 2.03% to 12.77% with statistical differences (χ2=216.05,P<0.01). The overall adult density was 4.47/man-hour, which ranged between 2.67 to 6.50/man-hour from June to October but, there was no statistical difference between months (t=0.09-1.31,P>0.05). The highest density was found in mountainous woods (9.60), followed by farmland (7.40) and special places (5.80), which were obviously higher than those in other environments (1.00-2.00) (t= 2.78-3.64,P<0.05). Conclusion As dengue mosquitoes, Ae. albopictus, were widely distributed in the county, it is important to implement prevention and control measures against the disease.

Key words: Dengue fever, Aedes albopictus, Container index, Population density

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