Chines Journal of Vector Biology and Control ›› 2021, Vol. 32 ›› Issue (5): 570-575.DOI: 10.11853/j.issn.1003.8280.2021.05.012

• Vector Surveillance • Previous Articles     Next Articles

An investigation of parasitic chigger mites on the rodents in some areas of Heihe, Heilongjiang province, China

MU Qun-zheng1, LI Xin-ying2, LIU Rong-rong1, YANG Jun3, LI Dong-mei1, LU Liang1, LI Gui-chang1, HOU Yong4, LI Ming4, SONG Xiu-ping1, MENG Feng-xia1, LIU Qi-yong1   

  1. 1. State Key Laboratory of Infectious Disease Prevention and Control, Department of Vector Biology and Control, 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;
    2. Gansu Provincial Center for Disease Control and Prevention, Lanzhou, Gansu 730000, China;
    3. Xunke Customs House, Heihe, Heilongjiang 164400, China;
    4. Harbin Customs District, Harbin, Heilongjiang 150001, China
  • Received:2021-04-26 Online:2021-10-20 Published:2021-10-20
  • Supported by:
    Supported by the National Science and Technology Major Project of China (No. 2017ZX10303404006)

黑龙江省黑河市部分地区啮齿动物体表寄生恙螨调查

母群征1, 李欣颖2, 刘蓉蓉1, 杨军3, 栗冬梅1, 鲁亮1, 李贵昌1, 侯咏4, 李明4, 宋秀平1, 孟凤霞1, 刘起勇1   

  1. 1. 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, 传染病预防控制国家重点实验室, 世界卫生组织媒介生物监测与管理合作中心, 北京 102206;
    2. 甘肃省疾病预防控制中心, 甘肃 兰州 730000;
    3. 逊克海关, 黑龙江 黑河 164400;
    4. 哈尔滨海关, 黑龙江 哈尔滨 150001
  • 通讯作者: 李贵昌,E-mail:liguichang@icdc.cn
  • 作者简介:母群征,男,在读硕士,主要从事病媒生物及相关传染病控制工作,E-mail:1484553691@qq.com
  • 基金资助:
    国家科技重大专项(2017ZX10303404006)

Abstract: Objective To investigate the species composition and distribution of ectoparasitic chigger mites on the rodents in some areas of Heihe, Heilongjiang province, China. Methods Rodents were captured using rat snap traps in Aihui district, Xunke county, and Wudalianchi of Heihe in mid-September, 2015. Chigger mites were collected from the body surface of rodents. The species of chigger mites was identified according to their morphologic characteristics, and the species of rodents and pikas were identified by morphology and DNA barcoding technique. The species composition, chigger infestation rate, chigger index in each area and habitat were calculated and analyzed. The nucleic acid of Orientia tsutsugamushi was detected by nested PCR. Results A total of 170 rodents were captured, involving 8 species of 6 genera from 3 families under 2 orders. Myodes rutilus (38.26%), Ochotona mantchurica (34.78%), and M. rufocanus (14.78%) were the dominant species in the volcanic geopark of Xunke county. Apodemus agrarius was the dominant species in the farmland of Wudalianchi (76.67%) and Aihui district (64.00%). Or. tsutsugamushi was negative in all rodents captured. No chigger mite was found on the bodies of rodents from Wudalianchi and Aihui district, while 11 256 chigger mites were found on rodents from Xunke county, belonging to 5 species of 2 genera, with the dominant mite species Neotrombicula gardellai (87.50%). The main hosts of chigger mites were O. mantchurica, M. rutilus, and M. rufocanus. Conclusion The different areas of Heihe have distinct species compositions of rodents, and different species of rodents carry distinct numbers of chigger mite.

Key words: Rodent, Chigger mite, Ochotona mantchurica, Orientia tsutsugamushi

摘要: 目的 调查了解黑龙江省黑河市部分地区啮齿动物体表寄生恙螨的种类组成及分布。方法 2015年9月中旬在黑河市瑷珲区、逊克县、五大连池市采用鼠夹法捕获啮齿动物,捡取体表寄生恙螨;依据形态特征鉴定恙螨种类,通过形态特征和DNA条形码技术鉴定鼠和鼠兔种类;计算各地区、生境的啮齿动物种类构成、带恙螨率、恙螨指数并进行统计分析;通过巢式PCR检测鼠恙虫病东方体病原核酸。结果 本次共捕获啮齿动物170只,包括2目3科6属8种。逊克县的火山地质公园以红背䶄(38.26%)、满洲里鼠兔(34.78%)和棕背䶄(14.78%)为主,五大连池市和瑷珲区农田周边以黑线姬鼠为主,分别占76.67%和64.00%。啮齿动物恙虫病东方体检测均为阴性。五大连池市和瑷珲区鼠体均未捡到恙螨,逊克啮齿动物检获11 256只恙螨,包括2属5种,高丽新恙螨为优势螨种(87.50%)。满洲里鼠兔、红背䶄和棕背䶄是恙螨的主要寄生宿主。结论 黑河市不同调查地点啮齿动物种群构成及不同鼠种携带恙螨数量存在明显差异。

关键词: 啮齿动物, 恙螨, 满洲里鼠兔, 恙虫病东方体

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