云南地处亚热带、热带地区,气候湿润,适宜许多节肢动物滋生,人兽共患病较多。临床上经常出现发热待诊病例或暴发原因不明热病流行,许多病例的发生可能与接触蜱类有关。为了解该地区与蜱有接触人群和军犬感染立克次体和螺旋体的情况,特别是否有埃立克体感染的存在,我们于1991年8月～1992年2月对云南中南部地区的军犬和部份人群的血清作埃立克体、斑点热立克次体、Q热立克次体及莱姆病螺旋体抗体检测,证明除Q热外,其他均出现阳性。关于埃立克体感染的调查,为国内首次报道。 Yunnan is located in the subtropical and tropical regions, humid climate, suitable for breeding many arthropods, animal zoonosis more. Clinical fever often diagnosed cases or outbreaks of unknown fever, the incidence of many cases may be related to contact with ticks. In order to understand the situation of tick-borne and military dogs infected with rickettsia and spirochetes in the area, especially the presence of ehrlichiosis, we investigated the prevalence of rickettsia and spirochete infection in central and southern Yunnan Province from August 1991 to February 1992 The blood of dogs and some of the population were tested for Ehrlichia, Spotted fever, Q fever, Lyme disease and Helicobacter spirochaete antibodies, which showed positive results except for Q fever. The investigation of Ehrlichia’s infection was first reported in China.