Chines Journal of Vector Biology and Control ›› 2015, Vol. 26 ›› Issue (1): 47-50.DOI: 10.11853/j.issn.1003.4692.2015.01.012

Previous Articles     Next Articles

Study of ecological habits of important malaria vectors in epidemic-prone regions of malaria in Yunnan province, China

ZHANG Jing-wei1, JIANG Jin-yong2, ZENG Xu-can2, ZHENG Yu-ting2, ZHOU Hong-ning1,2   

  1. 1. Institute of Pathogens and Vectors of Dali University, Pu'er Division, Pu'er 665000, Yunnan Province, China;
    2. Yunnan Institution of Parasitic Diseases, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research (in establishment), Yunnan Provincial Center of Malaria Research, Pu'er 665000, Yunnan Province, China
  • Received:2014-09-01 Online:2015-02-20 Published:2015-02-20
  • Supported by:

    Supported by the National Natural Science Foundation of China(No. 81160357, 30960327, 30660160)and Sino-British Fellowship Trust in UK(No. 313669)

云南省部分疟疾疫情不稳定地区重要媒介按蚊生态习性研究

张井巍1, 姜进勇2, 曾旭灿2, 郑宇婷2, 周红宁1,2   

  1. 1. 大理学院病原与媒介生物研究所普洱分部, 云南普洱665000;
    2. 云南省寄生虫病防治所, 云南省虫媒传染病防控研究重点实验室(培育), 云南省疟疾研究中心, 云南普洱665000
  • 通讯作者: 周红宁,Email: zhouhn66@163.com
  • 作者简介:张井巍,女,在读硕士,主要从事虫媒病毒研究,Email: 13214461760@126.com
  • 基金资助:

    国家自然科学基金(81160357,30960327,30660160);中英学者基金资助项目(313669)

Abstract:

Objective To study the changes in ecological habits of important malaria vectors in the epidemic-prone regions of malaria in Yunnan province, China. Methods Light traps were used to collect mosquitoes in households and cowsheds all night, and human landing collection was used to study the pattern of mosquito activities at night in Jinghong city, Yuanjiang county, Suijiang county, and Longling county. The host source of mosquito blood meal was identified by multiplex PCR analysis. Results A total of 44 635 mosquitoes from 18 species were collected, of which Anopheles sinensis, An. minimus, An. lesteri, An. kunmingensis, and other species accounted for 59.30% (26 468), 5.44% (2428), 0.22% (100), 3.63% (1620), and 31.41% (14 019), respectively. The peaks of night activity for different Anopheles mosquito species were as follows: between 23:00 and 00:00 for An. minimus in Jinghong, between 20:00 and 21:00 for An. sinensis in Jinghong and Yuanjiang, between 02:00 and 03:00 for An. sinensis in Suijiang, and before 22:00 for An. kunmingensis. The expected lifespans of An. sinensis, An. minimus, and An. kunmingensis were relatively long, between 0.90 and 1.00. The human blood indices for An. sinensis, An. minimus, and An. kunmingensis were 0.30, 0.50, and 0.30, respectively. Conclusion The ecological habits of An. minimus, An. sinensis, and An. kunmingensis have changed, and whether these changes lead to alterations in the endemic characteristics of malaria in those regions awaits further investigation.

Key words: Malaria vector, Ecological habit, Epidemic-prone region of malaria, Yunnan province

摘要:

目的 了解云南省疟疾疫情不稳定地区重要传疟媒介按蚊生态习性的变化。方法 在景洪市、元江、绥江和龙陵县4个疟疾不稳定区,采用诱蚊灯人(畜)房通宵捕获蚊虫,通宵人工诱捕观察蚊虫夜间活动节律,应用多重PCR方法检测蚊虫胃血血源。结果 4个调查点共捕获18种44 635只按蚊,其中中华按蚊26 468只,微小按蚊2428只,雷氏按蚊100只,昆明按蚊1620只,其他按蚊14 019只,分别占所获按蚊总数的59.30%、5.44%、0.22%、3.63%和31.41%。景洪市微小按蚊夜间活动高峰在23:00-00:00;景洪市和元江县的中华按蚊夜间活动高峰为20:00-21:00;绥江县的中华按蚊夜间活动高峰为02:00-03:00;昆明按蚊夜间活动高峰主要在22:00之前;中华按蚊、微小按蚊和昆明按蚊日预期寿命较高,均在0.90~1.00之间;中华按蚊人血指数为0.30,微小按蚊为0.50,昆明按蚊为0.30。结论 微小按蚊、中华按蚊和昆明按蚊生态习性发生了变化,是否引起当地疟疾流行特征发生改变,有待于进一步调查。

关键词: 疟疾媒介, 生态习性, 疟疾不稳定地区, 云南省

CLC Number: