Three tick vectors of spotted fever group rickettsioses. Three tick vectors of spotted fever group rickettsioses. From top to bottom are Rhipicephalus sanguineus, the primary vector of R. conorii subsp. conorii, the agent of Mediterranean spotted fever; Dermacentor marginatus, vector of R. slovaca and R. raoultii; and Amblyomma variegatum, vector of R. africae, the agent of ATBF. Males are on the left side, and females are on the right. Bar scale, 1 mm. Philippe Parola et al. Clin. Microbiol. Rev. 2013; doi:10.1128/CMR.00032-13