Rickettsia rickettsiiRocky Mountain Spotted FeverRickettsiaRickettsia InfectionsRickettsia prowazekiiTicksRickettsial VaccinesRickettsia felisRhipicephalus sanguineusRickettsia typhiDermacentorIxodidaeCoxiellaTick-Borne DiseasesArachnid VectorsAntibodies, BacterialBoutonneuse FeverTyphus, Epidemic Louse-BorneRickettsia conoriiEhrlichia chaffeensisOrientia tsutsugamushiVero CellsBartonellaComplement Fixation TestsOklahomaGuinea PigsAntigens, BacterialEhrlichiosisDog DiseasesTyphus, Endemic Flea-BorneSiphonapteraCercopithecus aethiopsDNA, Bacterial