The condition is universally fatal. As of 1981, nobody is known to have lived longer than 2.5 years after the onset of<unk>  symptoms. The longest recorded survivor of variant<unk>  (vCJD) was Jonathan Simms, a Northern Irish man who lived 10 years after his diagnosis.
Creutzfeldt–Jakob disease
Anti-Hu associated encephalitis
Powassan encephalitis
Kuru (disease)  Kuru  1
Saint Louis encephalitis
Variant Creutzfeldt–Jakob disease  Variant Creutzfeldt–Jakob disease  1
Autoimmune encephalitis
Viliuisk encephalomyelitis