Flesh-eating bacteria alert in Louisiana: Vibrio vulnificus cases rise; 5 people die after exposure to seawater

Louisiana officials have issued a warning about a rise in severe infections caused by Vibrio vulnificus, a potentially deadly "flesh-eating" bacteria. This year, the state has recorded nine cases, with five resulting in death, compared to an average of seven cases and one death in previous years. All nine infected individuals had wounds exposed to seawater, and every patient had an underlying health condition.

Vibrio bacteria naturally thrive in warm coastal waters, with concentrations typically higher between May and October. Infections can occur when an open wound comes into contact with saltwater or brackish water, or through consuming raw or undercooked seafood, such as oysters. Symptoms can range from gastrointestinal illness to wound infections and bloodstream infections.

Vibrio vulnificus infections are particularly severe, often requiring intensive care or limb amputation. The health department warns that about one in five people infected dies, with some fatalities occurring within a day or two after symptoms begin.

Louisiana health authorities are urging residents to exercise caution when swimming or wading in coastal waters, especially if they have an open wound. If a wound exposed to saltwater or brackish water shows signs of infection, people should seek medical attention immediately. Patients are also advised to inform their healthcare providers about any recent exposure to seawater.