West Nile Virus

Mosquito that spreads West Nile virus on a persons arm.

About West Nile

Briefly understand the cause, symptoms, and ways to prevent it.
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Preventing West Nile

Know how to prevent West Nile.
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West Nile: Symptoms, Diagnosis, & Treatment

Know the symptoms and what to do if you think you have West Nile.
Mosquito full of blood on a person's arm

West Nile: Causes and How It Spreads

Learn what causes West Nile and how it is spread.
US Map

Data and Maps for West Nile

View data and maps for West Nile.

For Professionals

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Treatment and Prevention of West Nile Virus Disease

Learn how to treat and prevent West Nile virus disease.
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Clinical Signs and Symptoms of West Nile Virus Disease

Learn the clinical signs and symptoms of West Nile virus disease.
Lab worker at a microscope

Clinical Testing and Diagnosis for West Nile Virus Disease

Know what tests to order to diagnose West Nile virus infection.
Transmission electron microscope image of West Nile virus

Transmission of West Nile Virus

Know the cause of West Nile virus disease and how it is transmitted.
Doctor looking at a tablet

West Nile Virus Resources

Link to additional information about West Nile virus in the United States.
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West Nile Virus Clinician Training – Free Continuing Medical Education (CME) Credit

Access a clinical training for West Nile virus disease.