中国媒介生物学及控制杂志 ›› 2012, Vol. 23 ›› Issue (5): 402-405.

• 专题报道——虫媒病毒调查研究 • 上一篇    下一篇

云南省弥勒县2009年蚊媒病毒分离和鉴定

冯云1, 陈卫武2, 杨卫红1, 章域震1, 杨杜鹃1, 刘芬1, 张娟1, 王丕玉3, 白鹏飞2, 窦友剑2, 李继辉2, 张海林1   

  1. 1. 云南省地方病防治所/云南省病毒立克次体研究中心, 云南大理 671000;
    2. 弥勒县疾病预防控制中心, 云南弥勒 652300;
    3. 云南省寄生虫病防治所
  • 收稿日期:2012-06-27 出版日期:2012-10-20 发布日期:2012-10-20
  • 通讯作者: 张海林,Email: zhangHL715@163.com
  • 基金资助:

    中美新发和再发传染病合作项目(U19-GH000004);国家自然科学基金(30560142)

Isolation and identification of mosquito-borne viruses in Mile county,Yunnan province, China in 2009

FENG Yun1, CHEN Wei-wu2, YANG Wei-hong1, ZHANG Yu-zhen1, YANG Du-juan1, LIU Fen1, ZHANG Juan1, WANG Pi-yu3, BAI Peng-fei2, DOU You-jian2, LI Ji-hui2, ZHANG Hai-lin1   

  1. 1. Yunnan Institute of Endemic Disease Control and Prevention/Research Center of Arbovirus and Rickettsia, Dali 671000, Yunnan Province,China;
    2. Mile Center for Disease Control and Prevention, Mile 652300, Yunnan Province, China;
    3. Yunnan Institute of Parasitic Disease
  • Received:2012-06-27 Online:2012-10-20 Published:2012-10-20
  • Supported by:

    Supported by the China-US Collaborative Program on Emerging and Re-emerging Infectious Diseases, and China CDC-US CDCCooperative Agreement(No. U19-GH000004)and the National Natural Science Foundation of China(No. 30560142)

摘要:

目的 了解云南省红河州弥勒县蚊虫中虫媒病毒的分布特点,为虫媒病毒病防治提供科学依据。方法 2009年7月在弥勒县采集蚊虫标本,用细胞培养法分离病毒,对病毒分离物进行分子生物学鉴定。结果 从采集到的三带喙库蚊4400只和中华按蚊2200只中分离到9株阳性分离物,经分子生物学鉴定,7株分离物为流行性乙型脑炎(乙脑)病毒(JEV),均分离自三带喙库蚊;2株分离物为淡色库蚊浓核病毒(CppDNV),分离自三带喙库蚊和中华按蚊。结论 首次在红河州弥勒县分离到乙脑病毒,从病原学证实弥勒县是乙脑流行区。流行株同源性和分子遗传进化分析证实为基因Ⅰ型乙脑病毒,为滇东南地区首次分离。

关键词: 蚊虫, 虫媒病毒, 流行性乙型脑炎病毒, 淡色库蚊浓核病毒

Abstract:

Objective To investigate the distribution patterns of mosquito-borne viruses in Mile county, Honghe prefecture, Yunnan province, China, and to provide evidence for prevention and control of mosquito-borne diseases. Methods Mosquito samples were collected in Mile county during July 2009. Viruses were isolated from the samples through cell culture and then identified by molecular biology techniques. Results Nine virus strains were isolated from the mosquito samples including 4400 individuals of Culex tritaeniorhynchus and 2200 individuals of Anopheles sinensis. Seven strains, which were from Cx. tritaeniorhynchus, were identified as Japanese encephalitis virus (JEV), and 2 strains, which were from Cx. tritaeniorhynchus and An. sinensis, were identified as Cx. pipiens pallens densovirus (CppDNV). Conclusion JEV was first isolated from Mile county, Honghe prefecture, demonstrating that Mile county is an endemic area of JE from the etiological aspect. The prevalent JEV strain was confirmed to be genotypeⅠ, according to homology and phylogenetic analysis, and was first isolated in the southeast area in Yunnan province, China.

Key words: Mosquito, Arboviruses, Japanese encephalitis virus, Culex pipiens pallens densovirus

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