中国媒介生物学及控制杂志 ›› 2025, Vol. 36 ›› Issue (2): 148-152.DOI: 10.11853/j.issn.1003.8280.2025.02.002

• 实验研究实验研究 • 上一篇    下一篇

云南省景洪市2023年登革病毒基因型分析

张军玉1, 李丽华2, 陈润1, 袁丽容3, 杨文志4, 詹红梅4, 曾芬2, 杨淑娟2, 彭燕2, 陈小娟2, 周红宁1,3,4,5, 高国一2   

  1. 1. 大理大学基础医学院, 云南 大理 671000;
    2. 西双版纳傣族自治州人民医院感染性疾病科, 云南 景洪 666100;
    3. 昆明理工大学生命科学与技术学院, 云南 昆明 650500;
    4. 昆明医科大学公共卫生学院, 云南 昆明 650500;
    5. 云南省热带传染病国际联合实验室, 云南省虫媒传染病防控研究重点实验室, 云南省寄生虫病防治所, 云南 普洱 665000
  • 收稿日期:2024-10-17 出版日期:2025-04-20 发布日期:2025-05-09
  • 通讯作者: 周红宁,E-mail:zhouhn66@163.com;高国一,E-mail:gaoguoyi51@sina.com
  • 作者简介:张军玉,女,在读硕士,检验技师,主要从事虫媒传染病防治研究,E-mail:zhangjunyu122@163.com;李丽华,女,主任医师,主要从事感染性疾病诊治工作,E-mail:13988176230@163.com
  • 基金资助:
    云南省重点研发计划项目(202103AQ100001)

Analysis of genotypic characteristics of dengue viruses in Jinghong, Yunnan Province, China, 2023

ZHANG Jun-yu1, LI Li-hua2, CHEN Run1, YUAN Li-rong3, YANG Wen-zhi4, ZHAN Hong-mei4, ZENG Fen2, YANG Shu-juan2, PENG Yan2, CHEN Xiao-juan2, ZHOU Hong-ning1,3,4,5, GAO Guo-yi2   

  1. 1. College of Basic Medicine, Dali University, Dali, Yunnan 671000, China;
    2. Department of Infectious Diseases, Xishuangbanna Dai Autonomous Prefecture People's Hospital, Jinghong, Yunnan 666100, China;
    3. Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China;
    4. College of Public Health, Kunming Medical University, Kunming, Yunnan 650500, China;
    5. Yunnan International Joint Laboratory of Tropical Infectious Diseases, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Yunnan Institute of Parasitic Diseases, Pu'er, Yunnan 665000, China
  • Received:2024-10-17 Online:2025-04-20 Published:2025-05-09
  • Supported by:
    Yunnan Province Key Research and Development Plan (No. 202103AQ100001)

摘要: 目的 了解云南省景洪市2023年登革病毒基因型特征,为当地登革热防治提供参考。方法 2023年7月13日-2023年8月4日在西双版纳傣族自治州(西双版纳)人民医院采集疑似登革热患者血清样本,通过细胞培养分离病毒,将分离的病毒进行反转录-聚合酶链式反应扩增登革病毒E基因并测序分析,采用MEGA 11.0软件构建进化树。结果 2023年共采集134份疑似登革热患者血清样本,其中登革病毒核酸阳性127份,血清型均为登革病毒1型。细胞培养分离出13株登革病毒株,根据E基因序列分析为基因Ⅰ型,与2023年广州(PP563955.1)和瑞丽(RL23-83)流行株比较,同属一个分支,序列相似性为99.90%~100%;与2019年柬埔寨(OQ678099.1)和印度尼西亚流行株(ON584400.1)的核苷酸相似性为99.00%~99.10%。结论 2023年景洪市登革热疫情主要由登革病毒1型(基因Ⅰ型)引起,可能与广州和瑞丽市流行的登革病毒来源相似,建议相关部门加强对登革病毒的监测。

关键词: 登革病毒, E基因, 血清型, 系统进化分析, 景洪市

Abstract: Objective To investigate the genotypic characteristics of dengue viruses in Jinghong of Yunnan Province, China, 2023, so as to provide a reference for local prevention and control of dengue fever. Methods From July 13, 2023 to August 4, 2023, serum samples of suspected dengue fever patients were collected at the Xishuangbanna Dai Autonomous Prefecture People's Hospital. Viruses were isolated by cell culture. The Dengue virus envelope gene was amplified via reverse transcription-polymerase chain reaction and sequenced. A phylogenetic tree was constructed using MEGA 11.0 software. Results In 2023, a total of 134 serum samples were collected from patients with suspected dengue fever, of which 127 were positive for Dengue virus nucleic acids, all of which were identified as Dengue virus type 1. Thirteen Dengue virus strains were isolated by cell culture. Based on the envelope gene sequence analysis, they were classified as genotype Ⅰ, which belonged to the same branch as the epidemic strains in Guangzhou (PP563955.1) and Ruili (RL23-83) in 2023, with sequence similarity of 99.90%-100%. The nucleotide similarity with the epidemic strains in Cambodia (OQ678099.1) and Indonesia (ON584400.1) in 2019 was 99.00%-99.10%. Conclusions The dengue fever epidemic in Jinghong in 2023 was mainly caused by dengue virus type 1 (genotype Ⅰ), which is likely to have a similar origin to the strains epidemic in Guangzhou and Ruili. It is recommended that relevant departments should strengthen the surveillance of dengue viruses.

Key words: Dengue virus, Envelope gene, Serotype, Phylogenetic analysis, Jinghong City

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