Mimics HSV<unk> 
Subacute presentation over days to weeks
Short-term memory deficits
Headache
Irritability, sleep disturbance, agitation
Delusions, hallucinations, psychosis
Seizure
Limbic encephalitis
Hypoxic encephalopathy
Japanese encephalitis
Acute toxic-metabolic encephalopathy 
Anti-NMDA receptor encephalitis
Hypoglycemia
Drug induced aseptic meningitis
Hyperosmolar state 