Louisiana reports fifth death from flesh-eating Vibrio vulnificus as infections rise along Gulf Coast

Louisiana health officials confirmed a fifth death from Vibrio vulnificus as rising numbers of local infections drew renewed warnings for Gulf Coast residents and visitors. The state has recorded 26 Vibrio infections this year, more than twice the total reported in 2024.

The bacterium Vibrio vulnificus thrives in warm coastal waters and is most common between May and October. Health authorities say infections typically occur when open wounds are exposed to contaminated seawater or when people eat raw or undercooked seafood, especially oysters. The latest death remained under investigation, and officials did not identify the individual.

Two of this year's deaths were linked to raw oysters, while 85 percent of those infected reported exposure through wounds and seawater. The Louisiana Department of Health said that the current year has seen a higher number of infections and deaths than is typical for the state; over the past decade, Louisiana has averaged about seven cases and one death annually.

Experts say warming ocean temperatures may be driving the spread of Vibrio along the Gulf Coast. Fred Lopez, an infectious disease specialist at LSU Health, told CBS News that global warming is moving Vibrio infections up the East Coast, and the trend is visible beyond Louisiana. "This year, Louisiana continues to see a higher number of Vibrio cases and deaths than are typically reported," the department said.

Beyond Louisiana, cases have appeared along the Gulf Coast with Alabama reporting 10 cases (one death), Mississippi 3 cases (one fatal), and Florida 13 cases (eight deaths). There have even been documented instances as far north as Massachusetts, prompting oyster bed closures in some areas. The Department of Health cautioned that the rise in cases underscores the risk to anyone who handles seafood or swims in coastal waters during the warm months.

Preventive guidance from the Louisiana Department of Health emphasizes avoiding brackish or salt water if a wound is present, or covering wounds with a waterproof bandage if contact with such water or raw seafood is possible. Officials also urge seeking medical attention promptly if a skin infection develops after water exposure. They note that people with underlying conditions such as liver disease or cancer may be at greater risk of severe complications, though anyone can be affected.

In Florida, a personal account illustrates how quickly Vibrio infections can progress. Ben West, 39, contracted Vibrio vulnificus after a family crabbing and mullet fishing trip under a bridge in Port St. Joe. He developed significant swelling and burning in his foot and ankle, but his doctors initially diagnosed cellulitis and prescribed antibiotics, which his fiancé says worsened the condition. West underwent multiple surgeries, and his family has launched a GoFundMe to help cover medical bills while his condition was monitored and treated.