EncephalitisEncephalitis, ViralEncephalitis, JapaneseEncephalitis Virus, JapaneseLimbic EncephalitisEncephalitis, ArbovirusEncephalitis Virus, Venezuelan EquineEncephalitis, Herpes SimplexEncephalitis, St. LouisEncephalitis VirusesEncephalitis Virus, St. LouisJapanese Encephalitis VaccinesEncephalitis Virus, Eastern EquineEncephalitis Virus, Western EquineEncephalomyelitis, Venezuelan EquineAnti-N-Methyl-D-Aspartate Receptor EncephalitisEncephalomyelitis, EquineEncephalitis Virus, Murray ValleyEncephalitis, CaliforniaEncephalitis Viruses, JapaneseFlavivirusToxoplasmosis, CerebralFlavivirus InfectionsWest Nile virusWest Nile FeverAntibodies, ViralCulicidaeEncephalomyelitis, Eastern EquineDelayed DiagnosisBrainSensitivity and SpecificityEarly DiagnosisAmebiasisPrenatal DiagnosisCulexHorse DiseasesEncephalitis, Varicella ZosterViral VaccinesFatal OutcomeParaneoplastic Syndromes, Nervous SystemMeningoencephalitisLa Crosse virusEncephalitis Virus, CaliforniaCerebrospinal FluidMagnetic Resonance ImagingRetrospective StudiesDiagnosisArthritis-Encephalitis Virus, CaprineAlphavirusArbovirus InfectionsArbovirusesHorsesAIDS Dementia ComplexVero CellsHerpes SimplexEncephalomyelitis, Acute DisseminatedParkinson Disease, PostencephaliticViral Envelope ProteinsPolymerase Chain ReactionEnzyme-Linked Immunosorbent AssayMeningitis, ViralRNA, ViralTomography, X-Ray ComputedTime FactorsEncephalomyelitis, Western EquineRoseolovirus InfectionsSindbis VirusNeutralization TestsBird DiseasesImmunoglobulin MBiopsyHenipavirus InfectionsDiagnostic ErrorsHemagglutination Inhibition TestsCercopithecus aethiopsAcute DiseaseDisease OutbreaksAlphavirus InfectionsMolecular Sequence DataInsect VectorsAntigens, ViralDengue VirusViral Nonstructural ProteinsVirus ReplicationWest Nile Virus VaccinesInfant, NewbornCricetinaeHerpesvirus 6, HumanProspective StudiesAutoimmune Diseases of the Nervous SystemEnterovirus InfectionsNipah VirusTogaviridae InfectionsPredictive Value of TestsTreatment OutcomeCzechoslovakiaCentral Nervous System InfectionsLoboseaVirulenceViral Plaque Assay