Thare are 3 known diseases caused by infection with rickettsial agents. They are North Asian tick-borne rickettsiosis, Queensland tick typhus, and African tick typhus (fièvre boutonneuse).
TICK-BORNE RICKETTSIOSES OF THE EASTERN HEMISPHERE
Meaning of TICK-BORNE RICKETTSIOSES OF THE EASTERN HEMISPHERE in English
English dictionary of medicine. Английский словарь медицины. 2012