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West Nile Virus

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West Nile Virus is a disease caused by a virus and spread by mosquitoes that can result in encephalitis. Encephalitis (en-sef-uh-LI-tis) is inflammation of the brain. Viral infections are the most common cause of the condition.

To report West Nile Virus or for more information, please contact the Epidemiology Program of the San Antonio Metropolitan Health District. They can be reached 24 hours a day, 7 days a week at (210) 207-8876.

More about West Nile Virus.