DO_infectious_disease_slim DO_rare_slim NCIthesaurus has material basis in viral encephalitis subacute sclerosing panencephalitis NCI:C85171 NCI:C85171 DOID:8970 Dawson's encephalitis Dawson's inclusion body encephalitis SNOMEDCT_US_2025_09_01:192685000 MIM:260470 UMLS_CUI:C0038522 ICD9CM:046.2 ORDO:2806 GARD:7708 MESH:D013344 ORDO:2806 ICD10CM:A81.1 MESH:D013344 GARD:7708 UMLS_CUI:C0038522 A viral encephalitis that has_material_basis_in persistent central nervous system infection of the wild-type measles virus (Morbillivirus hominis) characterized by onset of personality or behavioral changes and intellectual deterioriation years after initial infection, followed by progressive decline in motor function, akinetic mutism or coma, and death. Higher incidence or shorter latency periods may be observed in those initially infected under the age of 2 or in cases of intrafamilial transmission. ICD10CM:A81.1 MIM:260470 disease_ontology ICD9CM:046.2 SSPE Van Bogaert's sclerosing leukoencephalitis subacute sclerosing leukoencephalopathy Morbillivirus hominis