犬埃里希体的全球流行现状和风险因素分析

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中图分类号：S852.64 文献标志码：A 文章编号：0366-6964（2025）06-2626-13

Analysis of the Current Status of the Global Epidemic and Risk Factors for Ehrlichia canis

KANG Shenchen，ZHAO Yuanjie，CHEN Yu，LIU Mengmeng*（Department of Veterinary Medicine ， School of Tropical Agriculture and Forestry ，HainanUniversity，Haikou，China）

Abstract： Ehrlichia canis is a tick-borne pathogen transmitted by Rhipicephalus sanguineus s. l. ，primarily parasitizing the host’s blood cells. It poses a significant threat to human and animal health worldwide，and has considerable zoonotic importance. Several studies have found that the transmission and distribution of Ehrlichia canis is closely related to a variety of factors，including vector abundance， natural environment，age，usage，and health status of dogs. This paper provides a comprehensive review，covering the etiology，clinical manifestations，global epidemiological characteristics，and risk factors affecting the transmission and distribution of Ehrlichia canis. Its objective is to offer new perspectives and strategies for ehrlichiosis prevention and control.

Keywords：tick-borne diseases;zoonoses;Ehrlichia canis；risk factors ∗ Corresponding author： LIU Mengmeng，E-mail：994428@hainanu. edu.cn

犬埃里希体（Ehrlichiacanis，E.canis，也称犬埃立克体）是属于立克次体目（Rickettsiales），无形体科（Anaplasmataceae），埃里希体属（Ehri-chia）的一种革兰阴性胞内寄生菌，该病原主要寄生于动物的血细胞中，可对动物健康造成严重威胁[1]。（剩余30884字）