近年来,随着电子显微镜和超薄切片技术的广泛应用,国内外对立克次体超微结构的研究,日益深入,特别是在斑疹伤寒、斑点热和Q 热立克次体的研究中,取得了新的进展,这方面已有许多报道。但对于恙虫病立克次体超微结构的研究报道不多,而国内尚未见报道。我们在1982年3～11月,用透射电镜对恙虫病立克次体的超微结构及其在宿主细胞内的寄生 In recent years, with the extensive application of electron microscopy and ultrathin sections, the research on the ultrastructure of rickettsia at home and abroad has been deepened, especially in the research of typhus, spot fever and Q fever, , New progress has been made and many reports have been made on this issue. However, there are few reports on the ultrastructure of Rickettsia tsutsugamushi, and no reports have been reported in China. From March to November 1982, we examined the ultrastructure of Rickettsia tsutsugamushi and its parasitism in host cells by transmission electron microscopy