PRELIMINARY INVESTIGATION OF EHRLICHIA AND NEOEHRLICHIA IN RODENTS AT THE IMPORTANT PORTS ALONG THE"BELT AND ROAD"
10.3969/j.issn.1005-0507.2025.03.005
- VernacularTitle:"一带一路"重点口岸鼠形动物携带埃立克体和新埃立克体的初步调查
- Author:
Xiao-Long ZHANG
1
;
Jia XU
;
Shi-Liang MA
;
Pi-Zheng WANG
;
Juan PAN
;
Jia-Yuan CAO
;
Zhi-Wen SUN
;
Hui-Lin GUO
;
Li-Li XIAO
Author Information
1. 中国海关科学技术研究中心,北京 100026
- Keywords:
Rodent;
Ehrlichia;
Neoehrlichia;
16S rRNA;
Ports
- From:
Acta Parasitologica et Medica Entomologica Sinica
2025;32(3):160-166
- CountryChina
- Language:Chinese
-
Abstract:
Objective This study aimed to investigate natural infection of rodents with Ehrlichia and Neoehrlichia at major Chinese land-border ports along the"Belt and Road".Methods In 2022,rodents were monitored in 10 ports in northern and southern China and identified based on diagnostic morphological characteristics.The 16S rRNA genes of Ehrlichia and Neoehrlichia were detected by PCR using universal primers from rodent samples and phylogenetic analysis was performed based on the sequences of the detected positive pathogens.Results A total of 356 rodents were sampled,including 2 orders,5 families,15 genera,and 20 species.Predominantly,73,61,56,and 58 were Meriones unguiculatus(20.51%),Rattus norvegicus(17.13%),Apodemus agrarius(15.73%),and Microtus gregalis(16.29%).Only one Microtus fortis from Suifenghe Port was infected with Ehrlichia sp.Moreover,12 rodents were infected with Neoehrlichia spp.(overall positivity rate:3.37%).Conclusions Natural infections with Ehrlichia spp.and Neoehrlichia spp.were demonstrated in rodents at important Chinese land-border ports.The positivity rate of Neoehrlichia spp.was high in some ports,indicating that surveillance for ticks and their prevention and control measures should be intensified in these regions.
