West Nile Virus

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Also known as: WNV
Formal name: West Nile Virus
Related tests: CSF Analysis

At a Glance

Why Get Tested?

To determine the cause of viral meningitis or encephalitis that occurs during the summer season; to detect the presence of West Nile Virus (WNV)

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

Sample Required?

Cerebrospinal fluidĀ (CSF) collected from a spinal tap and/or a blood sample taken from a vein in your arm