Encephalitis Lethargica

Inspired by the idea of dreams, and a short story from Neil Gaiman's "Sandman: The Book of Dreams"

The story was set during the World War II era and was centered around a strange (up until now) rare disease that out-broke, during that time, that caused patients to live in a comatose state very similar to sleep.

Apart from the story, the origin of the disease and what caused it, is still uncertain, as is the way to cure it.

It just appeared and dissapeared...