埃立克体是一类专性细胞内寄生的革兰氏阴性球菌 ,能感染人和多种动物 ,引起埃立克体病。蜱是埃立克体的主要传播媒介。犬埃立克体病曾在世界上多个国家发生流行 ,造成大批军警犬死亡。 1998年广州市郊某养犬基地发生犬埃立克体病流行 ,2 0多条成年工作犬染病 ,死亡 6条〔1〕。 Ehrlichiosis is a type of obligately intracellular parasitic Gram-negative cocci that infects humans and many other animals and causes ehrlichiosis. Tick ​​is the main media of Ehrlichia. Canine ehrlichiosis was endemic in many countries around the world, killing a large number of military and police dogs. In 1998, a canine ehrlichiosis epidemic occurred in a dog base in the outskirts of Guangzhou. More than 20 adult working dogs were infected and 6 died [1].