Health Alert

DOH-Duval Issues Mosquito-Borne Illness Advisory

August 31, 2026 1 min read

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DOH-Duval is informing residents of a confirmed human case of locally-acquired West Nile virus.
Illustration of a mosquito inside of an orange target
For media inquiries: Chanel LeBlanc • Chanel.LeBlanc@FLHealth.gov • 904-524-2500

Duval County, Fla. — The Florida Department of Health in Duval County (DOH-Duval) is informing residents of a confirmed human case of locally-acquired West Nile virus. DOH-Duval and Jacksonville Mosquito Control are coordinating surveillance and prevention efforts by ground spraying.

DOH-Duval reminds the community to avoid being bitten by mosquitoes by taking these basic precautions.

The Department continues to conduct statewide surveillance for mosquito-borne illnesses, including West Nile virus infections, Eastern equine encephalitis, St. Louis encephalitis, malaria, chikungunya, and dengue. Residents of Florida are encouraged to report dead birds to the Florida Fish and Wildlife Conservation Commission’s site.

Learn More About Preventing Mosquito Bites

For more information, contact DOH-Duval by calling 904-253-1850.