Symptoms develop over days or weeks. The subacute development of short-term memory deficits is considered the hallmark of this disease, but this symptom is often overlooked, because it is overshadowed by other more obvious symptoms such as headache, irritability, sleep disturbance, delusions, hallucinations, agitation, seizures and psychosis, or because the other symptoms mean the patient has to be sedated, and it is not possible to test memory in a sedated patient.
Limbic encephalitis
La Crosse encephalitis
Powassan encephalitis
Saint Louis encephalitis
Autoimmune encephalitis
Rasmussen's encephalitis
Japanese encephalitis
Viliuisk encephalomyelitis