The History Of Encephalitis Lethargica, The Bizarre ‘Sleepy Sickness’ That Plagued The World In The Early 20th Century
First described by neurologist Constantin von Economo in 1917, encephalitis lethargica infected more than 1 million people — and killed an estimated 500,000.
By Austin Harvey
•
May 22, 2025
The History Of Encephalitis Lethargica, The Bizarre ‘Sleepy Sickness’ That Plagued The World In The Early 20th Century
First described by neurologist Constantin von Economo in 1917, encephalitis lethargica infected more than 1 million people — and killed an estimated 500,000.
By Austin Harvey
•
May 22, 2025