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The Florida Department of Health works to protect, promote, and improve the health of all people in Florida through integrated state, county, and community efforts.

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DOH-Duval Issues Blue-Green Algae Health Alert for Part of the St. Johns River

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The Florida Department of Health in Duval County (DOH-Duval) has issued a health alert for the presence of harmful blue-green algae toxins in the St. Johns River. The alert is in response to a water sample taken on September 23, 2024. The public should exercise caution in and around the St. Johns River near Mandarin Point.

Blood Pressure Numbers

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Stroke? Use F.A.S.T.

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Hepatitis A—remember to always wash your hands.

Florida Cancer Connect is a centralized resource hub for information on cancer treatment, caregiver tools, and stories from brave Floridians who have fought this disease on one centralized website. Use this tool to access a trusted information from local medical practitioners to help you and your family make informed decisions when it matters most.

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Mosquitoes can spread illness. Protect yourself.

Mosquito Prevention Flyer Graphic - English

Mosquito-borne diseases can be spread through the bite of mosquitoes. These diseases may be caused by a virus, also known as arboviruses, or can be caused by parasites. Several of the mosquito species found in Florida are capable of transmitting diseases to humans, horses, and other animals. Symptoms of these illnesses can range from mild to very severe.

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