This article is written by James Okun

Herpes Simplex Encephalitis is an infection of the brain caused by the HSV (Herpes Simplex Virus) usually Type 1 and is the most common cause of viral encephalitis in developed countries (www. and of “fatal sporadic fulminant necrotizing viral encephalitis” (

Encephalitis is often confused with Meningitis which is an infection of the three- layered covering of the brain (meninges). Meningoencephalitis is an infection of both the meninges and of the brain. Encephalitis is derived from the Greek with “en” meaning “in” and “kephale” meaning “head” ( The suffix “itis” means inflammation. Combined into one word the meaning is inflammation “in the head.” Continue Reading…