The Florida Department of Health issued renewed warnings on Sunday about the dangers of Vibrio vulnificus, a potentially fatal bacterium, following the state's first recorded death from the pathogen in 2026. The department urged beachgoers along the Gulf and Atlantic coasts to avoid entering warm coastal waters with open wounds.

Vibrio vulnificus thrives in warm, brackish seawater during the summer months, and infections typically peak between July and September. The bacterium can enter the body through cuts or by consuming raw or undercooked shellfish, particularly oysters, and can cause severe illness including necrotizing fasciitis, commonly described as flesh-eating disease.

The state recorded multiple Vibrio cases in prior years, with 2024 marking an unusually high total following hurricane-related flooding. Health officials advised anyone with a compromised immune system or liver disease to exercise particular caution, as those patients face a substantially higher risk of severe complications and death.

Emergency physicians and public health authorities emphasized that early treatment with antibiotics is critical, warning that infections can progress rapidly within hours. They recommended that swimmers cover open wounds with waterproof bandages and seek immediate medical care for any rapidly worsening skin infection after saltwater exposure.

The Centers for Disease Control and Prevention estimates that Vibrio bacteria cause roughly 80,000 illnesses and 100 deaths in the United States each year, with warming coastal waters expanding the geographic range of infections northward along the Atlantic seaboard.