label: Herpes Simplex Encephalitis
label_lc: herpes simplex encephalitis
description: A serious viral disorder characterized by infection of the brain by herpes simplex virus type 1 or 2. Herpes simplex virus type 1 affects adults, whereas herpes simplex virus type 2 affects newborns. Signs and symptoms include fever, headaches, vomiting, seizures and psychiatric manifestations.