At a Glance
Why Get Tested?
When to Get Tested?
When a patient has symptoms suggesting WNV such as headache, fever, stiff neck, and muscular weakness and a diagnosis of encephalitis and/or meningitis; also used as a screen for WNV in donated units of blood
Cerebrospinal fluid (CSF) collected from a spinal tap and/or a blood sample taken from a vein in your arm