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Human case of West Nile Virus confirmed in Duval County

News4JAX • August 31, 2026 • health

Key Points:

The Florida Department of Health in Duval County has confirmed a locally-acquired human case of West Nile virus, leading to coordinated prevention efforts including ground spraying by Jacksonville Mosquito Control.
Residents are urged to eliminate standing water around their homes, such as in containers, birdbaths, and pools, to reduce mosquito breeding grounds.
Protective measures include wearing long clothing, using mosquito repellents containing DEET or similar ingredients, and ensuring window and door screens are intact to keep mosquitoes out of homes.
Most people infected with West Nile virus show no symptoms, but about 20% may experience flu-like symptoms; severe illness is rare but requires immediate medical attention.
Statewide surveillance for mosquito-borne illnesses continues, and residents are encouraged to report dead birds as an indicator of West Nile virus activity.

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