An array of laboratory tests exist to assist with the diagnoses of<unk><unk>  encephalitis. Polymerase chain reactions (PCR) are most effective during the first week of infection. An early detection as a result of a successful PCR enables quicker medical treatment and ultimately a potentially higher survival rate. Other test useful during the later stages of infection include immunofluorescence assays, antibody titers, ELISA, and other serologic tests.
Tick-borne encephalitis laboratory findings
Viral encephalitis laboratory findings
St. Louis encephalitis laboratory findings
Japanese encephalitis laboratory findings
Zika virus infection laboratory findings
Viral meningitis laboratory findings
Bacterial meningitis laboratory findings
Rabies diagnostic criteria