Abstract
The study of microorganisms from ticks collected in cattle from Angola is reported herein, demonstrating the circulation of the pathogen R. aeschlimannii and potential novel tick-borne microorganisms with unknown pathogenicity belonging to Ehrlichia , Spiroplasma , Coxiella , Babesia and Francisella spp. and corroborating the presence of Rickettsia africae and Babesia bigemina .