The prevalence has been estimated to be 2.1/100,000 with a male-to-female ratio of 1:4. The mean age of onset is 44 with 20% of cases presenting before the age of 18 years. Most reported cases occur during the patient's fifth decade of life.
Hashimoto's encephalopathy
Rasmussen's encephalitis
Japanese encephalitis
La Crosse encephalitis
Saint Louis encephalitis
Powassan encephalitis
Marburg acute multiple sclerosis
Limbic encephalitis