Rickettsia akariRickettsiaRickettsiaceae InfectionsRickettsia InfectionsRickettsia rickettsiiRickettsia prowazekiiRickettsia felisTyphus, Epidemic Louse-BorneRocky Mountain Spotted FeverBoutonneuse FeverOrientia tsutsugamushiTyphus, Endemic Flea-BorneTicksSiphonapteraDermacentorIxodidaeTick-Borne DiseasesCoxiellaRickettsiaceaeRickettsieaeArachnid VectorsRickettsial VaccinesRhipicephalus sanguineusArthropod VectorsPhthirapteraIxodesDNA, BacterialAntibodies, BacterialCitrate (si)-SynthasePhylogenyAntigens, Bacterial