Encephalitis lethargica

Period

January 1915 ~ December 1926

Map

Epidemics map

Encephalitis lethargica (EL) is an atypical form of encephalitis. Also known as "von Economo Encephalitis", "sleeping sickness" or "sleepy sickness", it was first described in 1917 by neurologist Constantin von Economo and pathologist Jean-René Cruchet. The disease attacks the brain, leaving some victims in a statue-like condition, speechless and motionless. Between 1915 and 1926, an epidemic of encephalitis lethargica spread around the world. The exact number of people infected is unknown, but it is estimated that more than one million people contracted the disease during the epidemic, which directly caused more than 500,000 deaths. Most of those who survived never recovered their pre-morbid vigor.

Sources: Wikipedia - Encephalitis lethargica · CC BY-SA 4.0

Earlier and later events nearby

1. 1813Battle of Leipzig
2. 1848~1849Hungarian Revolution of 1848
3. 1866Austro-Prussian War
4. January 1915 ~ December 1926Encephalitis lethargicaThis page
5. 1919~1921Polish–Soviet War
6. 1938Munich Agreement
7. 1956Hungarian Revolution of 1956

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