中国媒介生物学及控制杂志 ›› 2024, Vol. 35 ›› Issue (4): 422-428.DOI: 10.11853/j.issn.1003.8280.2024.04.007

• 媒介生物监测 • 上一篇    下一篇

内蒙古长爪沙鼠病原体监测研究

汪子豪1,2, 常楠1,2, 李晋宇3, 李世豪3, 郝馨凝3, 胡伟超3, 韦晓慧1,2, 王晓旭3, 刘起勇1,2,3   

  1. 1. 南京医科大学公共卫生学院, 江苏, 南京 211166;
    2. 传染病溯源预警与智能决策全国重点实验室, 中国疾病预防控制中心传染病预防控制所媒介生物控制室, 世界卫生组织媒介生物监测与管理合作中心, 北京 102206;
    3. 山东大学齐鲁医学院公共卫生学院, 山东, 济南 250012
  • 收稿日期:2024-01-18 出版日期:2024-08-20 发布日期:2024-08-27
  • 通讯作者: 刘起勇,E-mail:liuqiyong@icdc.cn
  • 作者简介:汪子豪,男,在读硕士,从事媒介生物及其相关传染病研究工作,E-mail:dyw_i525.1999@foxmail.com
  • 基金资助:
    国家自然科学基金重大项目(32090023);媒介生物监测与控制项目(102393220020020000012)

Pathogen surveillance results of Meriones unguiculatus in Inner Mongolia Autonomous Region, China

WANG Zi-hao1,2, CHANG Nan1,2, LI Jin-yu3, LI Shi-hao3, HAO Xin-ning3, HU Wei-chao3, WEI Xiao-hui1,2, WANG Xiao-xu3, LIU Qi-yong1,2,3   

  1. 1. School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China;
    2. Department of Vector Biology and Control, National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Vector Surveillance and Management, Beijing 102206, China;
    3. School of Public Health, Cheeloo College Medicine, Shandong University, Jinan, Shandong 250012, China
  • Received:2024-01-18 Online:2024-08-20 Published:2024-08-27
  • Supported by:
    Major Program of National Natural Science Foundation of China (No. 32090023); Vector Surveillance and Control Project (No. 102393220020020000012)

摘要: 目的 通过对内蒙古自治区(内蒙古)长爪沙鼠的病原检测,为监测鼠传疾病及其媒介生物控制提供科学依据。方法 2021—2023年每年5、7和9月在内蒙古地区进行野外鼠类采集,对鼠体脾脏提取核酸,应用荧光定量PCR(qPCR)/反转录qPCR(RT-qPCR)技术,进行巴尔通体、大别班达病毒(DBV)、致病性钩端螺旋体、土拉弗朗西斯菌、地方性斑疹伤寒立克次体、恙虫病东方体、嗜吞噬细胞无形体、汉坦病毒检测,并对阳性率最高的巴尔通体进行rpoB基因测序。不同组间阳性率比较采用χ2检验。结果 共检测320份长爪沙鼠样本,巴尔通体阳性率为40.00%,DBV阳性率为6.88%,其他病原体阳性率均<5.00%。测序比对结果表明,样品携带的巴尔通体为Bartonella pachyuromydis、克氏巴尔通体(B. clarridgeiae)、罗莎利马巴尔通体(B. rochalimae)、道志巴尔通体(B. doshiae)、格拉汉姆巴尔通体(B. grahamii)、克拉斯诺夫巴尔通体(B. krasnovii)。巴尔通体阳性率在秋季最高,DBV阳性率在春季最高,2种病原体阳性率季节间差异均有统计学意义(χ2=15.274,P<0.001;χ2=7.247,P=0.025)。巴尔通体阳性率在呼伦贝尔市新巴尔虎右旗达赉苏木最高(70.59%)。结论 内蒙古地区长爪沙鼠携带多种病原体,特别是巴尔通体和DBV感染率较高。应根据季节调整疾病监测强度,并加强对呼伦贝尔市新巴尔虎右旗达赉苏木等高风险区域的监测。该研究可为鼠源疾病的风险评估和预测预警提供基础。

关键词: 长爪沙鼠, 病原检测, 巴尔通体, 大别班达病毒

Abstract: Objective To detect pathogens in Meriones unguiculatus in the Inner Mongolia Autonomous Region (Inner Mongolia), China, so as to provide a scientific basis for monitoring rodent-borne diseases and vector control. Methods Field rodents were collected in Inner Mongolia in May, July, and September from 2021 to 2023. Nucleic acids were extracted from the spleen of the rodents to detect Bartonella, Dabie bandavirus (DBV), Rickettsia typhi, Anaplasma phagocytophilum, Orientia tsutsugamushi, Francisella tularensis, pathogenic Leptospira, and Orthohantavirus with quantitative PCR (qPCR)/reverse transcription qPCR. The most prevalent pathogen, Bartonella, was further analyzed through rpoB gene sequencing. The positive rates were compared between groups using the Chi-square test. Results A total of 320 samples of M. unguiculatus were tested, of which 40.00% were positive for Bartonella, 6.88% were positive for DBV, and <5.00% were positive for any other pathogen. Sequence alignment detected the presence of various Bartonella species, including B. pachyuromydis, B. clarridgeiae, B. rochalimae, B. doshiae, B. grahamii, and B. krasnovii. The positive rate differed significantly in different seasons for Bartonella (highest in autumn, χ2=15.274, P<0.001) and for DBV (highest in spring, χ2=7.247, P=0.025). The highest positive rate (70.59%) of Bartonella was found in Dalai Sumu, New Barag Right Banner, Hulun Buir. Conclusions M. unguiculatus in Inner Mongolia carry various pathogens, with high infection rates of Bartonella and DBV. It is necessary to adjust disease surveillance intensity according to seasons, and strengthen surveillance in high-risk areas such as Dalai Sumu, Hulun Buir. This research provides a reference for risk assessment and early warning of rodent-borne diseases.

Key words: Meriones unguiculatus, Pathogen Detection, Bartonella, Dabie bandavirus

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