EhrlichiosisEhrlichiaEhrlichia chaffeensisBacteriaEhrlichia canisEhrlichia ruminantiumGram-Negative BacteriaRNA, Ribosomal, 16SGram-Positive BacteriaRickettsiaceaePhylogenyDNA, BacterialMolecular Sequence DataBacteria, AnaerobicBacterial ProteinsDNA, RibosomalSequence Analysis, DNARickettsiaceae InfectionsBacteria, AerobicListeria monocytogenesAnaplasmaWolbachiaRNA, BacterialDog DiseasesEscherichia coliAnaplasma phagocytophilumGenes, BacterialRickettsiaListeriosisGenome, BacterialCoxiella burnetiiSymbiosisTicksAnti-Bacterial AgentsPolymerase Chain ReactionSpecies SpecificityWater MicrobiologyGenes, rRNAColony Count, MicrobialGene Expression Regulation, BacterialBase SequenceAntibodies, BacterialChlamydialesIxodesAnaplasmataceaeFrancisella tularensisBase CompositionAntigens, BacterialGram-Negative Aerobic BacteriaGram-Negative Anaerobic BacteriaSeawaterAmino Acid SequenceBacterial Physiological PhenomenaTularemiaMacrophagesBacterial AdhesionSoil MicrobiologyCulture MediaDogsSulfur-Reducing BacteriaChlamydiaceaeBacterial Outer Membrane ProteinsSalmonella typhimuriumAnaplasmosisHost-Pathogen InteractionsVirulenceBacterial Typing TechniquesPhagocytosisAnaerobiosisHeartwater DiseaseTick-Borne DiseasesHorse DiseasesAnaplasmataceae InfectionsBacterial InfectionsChlamydiaMicrobial Sensitivity TestsBiodegradation, EnvironmentalMicrobial ViabilityTick InfestationsBacteriological TechniquesFresh WaterPseudomonasEnterobacteriaceaeGeologic SedimentsMicroscopy, ElectronGammaproteobacteriaFatty AcidsRickettsia rickettsiiStaphylococcus aureusAerobiosisLegionella pneumophilaRickettsia conoriiPhagosomesBacterial LoadGene Transfer, HorizontalSequence AlignmentBrucella abortusCloning, MolecularMice, Inbred C57BLBartonella