Aljafa, Abdullah K.H.2022-05-182022-05-1820171292https://drepo.sdl.edu.sa/handle/20.500.14154/3967Summary Q fever is a widespread disease that causes a mild disease in ruminants, but can cause abortions and stillbirths in cattle, sheep and goats. Subclinical carriers, mainly shed the bacteria in various secretions and excreta. The goal of this study was to investigate the epidemiology of the C.burnetii and to determine the host risk factors associated with C. burnetii antibody in cattle, sheep and goats in KSA. In this study, a total of 1310 blood serum samples were collected from private faenThesis