中国媒介生物学及控制杂志 ›› 2012, Vol. 23 ›› Issue (5): 395-397.

• 专题报道——虫媒病毒调查研究 • 上一篇    下一篇

2010年安徽省蚊虫标本分离到基因Ⅰ型流行性乙型脑炎病毒

贾慧丽1, 李铭华1, 付士红1, 王俊2, 张永根2, 胡万富2, 梁国栋1   

  1. 1. 中国疾病预防控制中心病毒病预防控制所, 传染病预防控制国家重点实验室, 北京 102206;
    2. 安徽省疾病预防控制中心
  • 收稿日期:2012-06-28 出版日期:2012-10-20 发布日期:2012-10-20
  • 通讯作者: 梁国栋,Email: gdliang@hotmail.com
  • 基金资助:

    中美新发和再发传染病合作项目(U19-GH000004);中日合作项目

Isolation and identification of genotypeⅠ Japanese encephalitis virusfrom mosquitoes in Anhui province, China in 2010

JIA Hui-li1, LI Ming-hua1, FU Shi-hong1, WANG Jun2, ZHANG Yong-gen2, HU Wan-fu2, LIANG Guo-dong1   

  1. 1. State Key Laboratory for Infectious Diseases Prevention and Control, Institute for Viral Disease Control and Prevention, ChineseCenter for Disease Control and Prevention, Beijing 102206, China;
    2. Anhui Center for Disease Control and Prevention
  • Received:2012-06-28 Online:2012-10-20 Published:2012-10-20
  • Supported by:

    Cooperative Agreement(No. U19-GH000004)and Japan Health Science Foundation

摘要:

目的 在安徽省不同地区开展流行性乙型脑炎病毒(JEV)病原学调查,了解当地JEV的基因型别及分子特征。方法 2010年8月在安徽省阜阳、淮南、安庆市的3个标本采集点使用诱蚊灯采集蚊虫标本,通过组织培养法分离病毒,并对病毒分离物进行血清学和分子生物学鉴定;利用生物信息学技术对新分离病毒的序列进行分析,完成同源性和系统发生分析。结果 采集到3属3种共计7651只蚊虫标本,通过组织培养技术分离得到11株病毒分离物,鉴定结果显示均为基因Ⅰ型JEV。安徽省JEV新分离株与基因Ⅰ型JEV的同源性最高,核苷酸同源性为96.8%~99.5%,氨基酸同源性为97.8%~100%。结论 在安徽省首次分离到基因Ⅰ型JEV,与我国上海市及浙江省JEV分离株进化关系较近。

关键词: 流行性乙型脑炎病毒, 序列分析, 种系发生

Abstract:

Objective To carry out the etiological investigation of Japanese encephalitis virus (JEV) in Anhui province, China, and to determine the genotype and molecular characteristics of the JEV. Methods Mosquito samples were collected using mosquito lamps in Fuyang, Huainan, and Anqing, Anhui province in August 2010 and then used for virus isolation by tissue culture. The obtained virus isolates were identified by serological and molecular biological methods. Homology and phylogenetic analysis were performed on the viral sequences by bioinformatics. Results A total of 7651 mosquitoes (3 species, 3 genera) were collected, and 11 virus strains were isolated from the mosquitoes. The newly isolated JEV strains had the highest homology with genotype Ⅰ JEV (96.8%-99.5% nucleotide homology and 97.8%-100% amino acid homology) and thus were identified as genotypeⅠ JEV. Conclusion GenotypeⅠ JEV strains were first isolated in Anhui province, China, and they have a close phylogenetic association with JEV strains isolated from Shanghai and Zhejiang province, China.

Key words: Japanese encephalitis virus, Sequence analysis, Phylogeny

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