AnaplasmosisAnaplasma phagocytophilumEhrlichiosisAnaplasmaAnaplasma marginaleTick-Borne DiseasesArthropod VectorsIxodesMaineArachnid VectorsCattle DiseasesTrypanosomiasis, BovineTicksDermacentorBabesiosisEhrlichiaTick InfestationsHorse DiseasesEhrlichia chaffeensisLyme DiseaseSerologic TestsBacterial Outer Membrane ProteinsDog DiseasesSeroepidemiologic StudiesHL-60 CellsCattleBabesiaAntibodies, BacterialSalivary GlandsComplement Fixation TestsDNA, BacterialBorrelia burgdorferiHorsesPolymerase Chain Reaction