Risk FactorsEhrlichiosisPolymerase Chain ReactionRickettsiaceae InfectionsEhrlichiaCase-Control StudiesEhrlichia chaffeensisDermatomycosesIncidenceHaemophilus ducreyiEpidemiologic Research DesignPeromyscusMolecular Sequence DataCausalityDog DiseasesDisease OutbreaksPneumonia, BacterialSpirochaetales InfectionsSwimming PoolsProventriculusEntomophthoralesChancroidSequence Analysis, DNARetrospective StudiesLeishmania guyanensisDNA, BacterialFoot DermatosesUnited StatesMycosesGastroenteritisProspective StudiesAbortion, VeterinaryAntibodies, BacterialHerpesvirus 8, HumanTrypanosoma cruziRickettsiaceaeTicksSpirochaetalesTooth InjuriesPhylogenySensitivity and SpecificityFoodborne DiseasesEnvironmental ExposureBornaviridaeBase SequenceRickettsia typhiPrevalenceVirus DiseasesInfant, NewbornRickettsia rickettsiiEpidemiologic StudiesOnychomycosisGram-Negative Bacterial InfectionsTooth MobilityPapillomavirus InfectionsBacterial InfectionsHorse DiseasesYersinia pestisDiarrheaKveim TestAntigens, BacterialSarcoma, KaposiPneumonia, MycoplasmaBurkholderia malleiVirulenceLyme DiseaseTime FactorsCat-Scratch DiseaseBorreliaChimerin ProteinsCaliciviridaeChlamydophila pneumoniaeRespiratory Tract InfectionsSecretagoginsAnaplasma phagocytophilumAcute DiseaseBacterial ProteinsRegistriesAge FactorsCommunity-Acquired InfectionsArenaviridaeSiphonapteraEpidemiologic MethodsRiskArachnid VectorsGlandersGenetic Predisposition to DiseaseMucoralesBartonella InfectionsPythiumMycoplasma pneumoniaeAnti-Bacterial AgentsRocky Mountain Spotted FeverMeningitis, AsepticPneumoniaWater PollutionFecesHerpesviridae InfectionsDysenteryTooth Migration