Sudden onset regressive autismYet to rateAggravated byPost-vaccinal encephalitisYet to rateMetadataDatabaseWorld problemsType(E) Emanations of other problemsBiological classificationN/AContent qualityYet to rate Yet to rateLanguageEnglishEditing linkhttps://www.ewphp.org/node/409486/editOfficial linkhttps://encyclopedia.uia.org/problem/sudden-onset-regressive-autismLast updateAug 9, 2026