蜱传囘归热是自然疫源性疾病。地理分布多见于非洲北部,中亚细亚及美洲南部。我国新疆喀什地区,于1957年李子宜等氏调查证明,有此病存在。喀什地区截至1957年底共确诊27例。本文所举12例系1958年7月份部队野营时,居住民房所感染。12例的诊断根据是:(1)不规则的间歇热型;(2)患者有蜱咬史,在所住室中发现蜱;(3)血中查到螺旋体存在(特别是在无热期);(4)部队及患者都未能发现有虱存在。 Return to the heat of ticks is a natural foci of disease. Geographic distribution more common in northern Africa, Central Asia and South America. Kashgar region of our country in Xinjiang, in 1957, Li Yi, et al survey proved that there is this disease exists. Kashi region as of the end of 1957 a total of 27 cases were diagnosed. In this article, 12 cases were infected by residential houses when camping in July 1958. The diagnosis of 12 cases was based on (1) irregular intermittent fever; (2) the patient had a history of tick bites and ticks were found in the dwelling room; (3) the presence of spirochetes was found in the blood (especially in the absence of heat ); (4) Both the army and the patient failed to detect the presence of lice.