Rickettsia rickettsiiRickettsiaRocky Mountain Spotted FeverRickettsia InfectionsBoutonneuse FeverRickettsia conoriiTicksRickettsia typhiRickettsia prowazekiiDermacentorRickettsieaeTyphus, Epidemic Louse-BorneIxodidaeTick-Borne DiseasesRickettsiaceae InfectionsArachnid VectorsTyphus, Endemic Flea-BorneRickettsiaceaeRhipicephalus sanguineusSaint Kitts and NevisSiphonapteraAntibodies, BacterialJackalsRhipicephalusRickettsia felisRickettsial VaccinesDNA, BacterialAntigens, BacterialIxodesTick InfestationsEhrlichiosisBacterial Outer Membrane ProteinsSeroepidemiologic StudiesPolymerase Chain ReactionScrub TyphusVero CellsOrientia tsutsugamushiAnaplasmataceaeFluorescent Antibody Technique, IndirectFeverCitrate (si)-SynthasePhylogenyEhrlichia chaffeensisQ FeverArthropod VectorsPolymorphism, Restriction Fragment LengthMolecular Sequence DataCoxiellaSpecies SpecificityTick ToxicosesBacterial ProteinsSequence Analysis, DNARNA, Ribosomal, 16SDog DiseasesGuinea PigsGenes, BacterialCoxiella burnetiiCross ReactionsBase SequenceComplement Fixation TestsFluorescent Antibody TechniqueDNA, RibosomalBartonellaCercopithecus aethiopsSeverity of Illness IndexBrazilFluoroimmunoassayDogs