West Nile virusEncephalomyelitis, EquineWest Nile FeverEncephalitis VirusesEncephalomyelitis, Eastern EquineEncephalitis Virus, Eastern EquineEncephalitis Virus, Venezuelan EquineEncephalitis Virus, Western EquineBird DiseasesEncephalomyelitis, Western EquineEncephalomyelitis, Autoimmune, ExperimentalHorse DiseasesCulicidaeCulexWest Nile Virus VaccinesArbovirusesEncephalomyelitis, Venezuelan EquineEncephalomyelitisHorsesEncephalomyelitis, Acute DisseminatedBirdsVertebrate VirusesArbovirus InfectionsCrowsInsect VectorsAntibodies, ViralEncephalitis, ArbovirusEncephalitis, St. LouisVirus CultivationFlavivirusFlavivirus InfectionsAlphavirusNeutralization TestsHemagglutination Inhibition TestsSciuridaeViral VaccinesMyelin-Oligodendrocyte GlycoproteinVero CellsVirusesAlabamaEncephalitis Virus, St. LouisDromaiidaeCercopithecus aethiopsCulture TechniquesRNA, ViralVirus ReplicationMyelin Basic ProteinAntigens, ViralBlood DonorsDisease OutbreaksCentral Nervous SystemMyelin-Associated GlycoproteinEncephalitis Viruses, JapaneseLethal Dose 50Viral Nonstructural ProteinsViral Plaque AssayMice, Inbred C57BLRaptorsViremiaMyelin ProteinsComplement Fixation TestsTissue Culture TechniquesCaliforniaEncephalitis, ViralMyelin Proteolipid ProteinSpinal CordTheilovirusMultiple SclerosisRodent DiseasesRNA VirusesSongbirdsDengue VirusMolecular Sequence DataHaplorhiniDemyelinating DiseasesCricetinaeFormaldehydeSentinel SurveillanceChick EmbryoMid-Atlantic RegionEncephalitis Virus, JapaneseMeningoencephalitisDisease ReservoirsCell LineVirus SheddingMaus Elberfeld virusEncephalomyelitis Virus, AvianAedesVaccinia virusSeroepidemiologic StudiesTime FactorsRats, Inbred LewPopulation SurveillanceEnzyme-Linked Immunosorbent AssayPhylogenyCommunicable Diseases, EmergingAntibody FormationViral Envelope ProteinsImmunoglobulin MNorth America