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West Nile Virus
Also known as: WNV
Formal name: West Nile Virus
Why get tested?
To determine the cause of viral meningitis (inflammation of the lining of
the brain and spinal cord) or encephalitis (inflammation of the brain) that
occurs during the summer season; to detect the presence of West Nile virus (WNV)
and to track its spread in the community and across the United States.
When to get tested?
If 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 fluid collected from a spinal tap and/or a blood sample drawn
from a vein in your arm.
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