Central Nervous System DiseasesCentral Nervous System Viral DiseasesMeningoencephalitisCentral Nervous System InfectionsNervous System DiseasesCentral Nervous SystemSubacute Sclerosing PanencephalitisBrainBrain DiseasesMaus Elberfeld virusMeningesCerebrospinal FluidAIDS Dementia ComplexDemyelinating DiseasesEnterovirus InfectionsAstrocytesMagnetic Resonance ImagingDisease Models, AnimalNeuronsCentral Nervous System NeoplasmsNervous SystemAutonomic Nervous System DiseasesCells, CulturedLamin Type APeripheral Nervous SystemDigestive System DiseasesPeripheral Nervous System DiseasesAutopsyVasculitis, Central Nervous SystemImmunohistochemistryTime Factors