RickettsiaRickettsia InfectionsRickettsia prowazekiiRickettsia rickettsiiRickettsia felisTyphus, Epidemic Louse-BorneRocky Mountain Spotted FeverBoutonneuse FeverOrientia tsutsugamushiTyphus, Endemic Flea-BorneTicksSiphonapteraDermacentorIxodidaeTick-Borne DiseasesCoxiellaRickettsiaceaeRickettsieaeRickettsiaceae InfectionsArachnid VectorsRickettsial VaccinesRhipicephalus sanguineusRickettsia akariArthropod VectorsPhthirapteraIxodesDNA, BacterialAntibodies, BacterialCitrate (si)-Synthase