The British Journal of Psychiatry
Encephalitis lethargica, a contemporary cause of catatonic stupor. A report of two cases.
J Johnson, P A Lucey

Abstract

Two cases of catatonic stupor are described due to presumed encephalitis lethargica. Catatonic and obsessional phenomena in the setting of a depressive psychosis associated with a movement disorder may constitute a post-encephalitic syndrome.