非洲钝缘蜱是非洲地区的一种常见软蜱,根据其嗜血习性至少包括4个近似种,它是蜱传回归热的重要媒介。Davis早在1943年就证明非洲钝缘蜱可实验感染Q热立克次体。1951年Jadin在刚果从自然界捕捉的非洲钝缘蜱中分离出Q热立克次体。1979年作者等曾发表了我们早期(1964)用非洲钝缘蜱实验感染Q热立克次体的资料,作者等并提出非洲 African oyster ticks is a common soft tick in Africa, according to its bloodthirsty habits include at least four similar species, it is an important medium for the return of heat transfer of ticks. As early as 1943, Davis proved that P. obliquus could be experimentally infected with T. rickettsi. In 1951, Jadin was isolated from T. obliqua captured in nature in the Congo. In 1979, the author published the data and authors of our earlier (1964) experiments on T. rickettsia infected by D. obliqua and proposed that Africa