Tag: EL Symptoms

Encephalitis Lethargica The Core Definition of Encephalitis Lethargica Encephalitis lethargica (EL), often referred to as the “sleeping sickness” of the 1920s, is a rare and severe neurological disorder characterized by profound lethargy, abnormal movements, and a wide array of other neurological and psychiatric symptoms. It first emerged as a global pandemic in the early 20th […]