RickettsiaRickettsia InfectionsRickettsia prowazekiiRickettsia rickettsiiRickettsia felisBacteriaTyphus, Epidemic Louse-BorneRocky Mountain Spotted FeverBoutonneuse FeverOrientia tsutsugamushiTyphus, Endemic Flea-BorneTicksSiphonapteraDermacentorGram-Negative BacteriaIxodidaeGram-Positive BacteriaTick-Borne DiseasesDNA, BacterialPhylogenyRNA, Ribosomal, 16SCoxiellaMolecular Sequence DataRickettsiaceaeBacteria, AnaerobicBacterial ProteinsRickettsieaeRickettsiaceae InfectionsSequence Analysis, DNADNA, RibosomalArachnid VectorsRickettsial VaccinesRhipicephalus sanguineusGenes, BacterialArthropod VectorsBacteria, AerobicRickettsia akariAntibodies, BacterialPhthirapteraEscherichia coliGenome, BacterialPolymerase Chain ReactionIxodesSpecies SpecificitySymbiosisBacterial Outer Membrane ProteinsAntigens, BacterialCitrate (si)-SynthaseBase SequenceAnti-Bacterial AgentsRNA, BacterialWater MicrobiologyGene Expression Regulation, BacterialBacteriological TechniquesBartonellaGram-Negative Aerobic BacteriaGram-Negative Anaerobic BacteriaBacterial Physiological PhenomenaAmino Acid SequenceVero CellsSoil MicrobiologyNymphColony Count, MicrobialGenes, rRNACulture MediaSulfur-Reducing BacteriaTick InfestationsSeawaterEhrlichiaBase CompositionBacterial Typing TechniquesTrombiculidaeCtenocephalidesBacterial AdhesionCoxiella burnetiiL Cells (Cell Line)Microscopy, ElectronHemipteraAnaerobiosisQ FeverVirulencePediculusEhrlichiosisDog DiseasesBiodegradation, EnvironmentalMicrobial Sensitivity TestsEctoparasitic InfestationsPseudomonasEnterobacteriaceaePlasmidsBacterial InfectionsCercopithecus aethiopsCloning, Molecular