Disease Summary help help Associated Targets () Explore Associated Targets list Mondo Description A form of encephalitis, the etiology of which is uncertain, that is characterized by lethargy and headache. Mondo Term and Equivalent IDs MONDO:0019384: encephalitis lethargica DOID:5225: von Economo's diseaseopen_in_newGARD:0006332: open_in_newNCIT:C26761: open_in_newNCIT:C34576: open_in_newOrphanet:83600: SCTID:186499007: open_in_newUMLS:C0014040: open_in_new