1987年7月云南省玉溪地区防疫站通报了一例恙虫病患者,并经病原学确诊。于是,我们进行了流行病学追踪调查,在患者病前所在宿舍及周围草地,捕获黄胸鼠13只,从其耳壳检获恙螨226只,经鉴定为英帕纤恙螨 Leptotrombidium(L)imphalum将其分为三组,做动物育传分离病原体,均 July 1987 Yunnan Yuxi epidemic prevention station informed a case of tsutsugamushi disease, and confirmed by etiology. Thus, we conducted an epidemiological follow-up survey. Thirteen Rattus flavipectus were captured in the dormitory and the surrounding grassland before the patient’s sickness, and 226 chigger mites were seized from the concha of his ears, and they were identified as Leptotrombidium (L) Imphalum will be divided into three groups, doing animal breeding and separation of pathogens, both