5 Deaths, 9 Cases: Louisiana Issues Flesh-Eating Bacteria Warning

Louisiana Health Officials are urging residents to take extra precautions after confirming a fifth death this year linked to Vibrio Vulnificus, a potentially Deadly Bacterium commonly found in warm coastal waters. The Louisiana Department of Health has reported nine confirmed infections and five deaths in 2026, a significant increase compared with the state’s typical average of about seven cases and one death during the same period in previous years.

Health Officials say the bacterium thrives in warm, brackish and saltwater environments, especially from May through October when water temperatures are at their highest. While infections are uncommon, they can become life-threatening if the bacteria enter the body through an open cut, scrape or surgical wound. People can also become ill after eating raw or undercooked seafood, particularly oysters.

According to the Louisiana Department of Health, all nine cases reported this year involved individuals whose wounds had been exposed to seawater. Officials also noted that every patient had at least one underlying health condition, increasing their risk for severe illness.

Vibrio Vulnificus has earned the nickname “flesh-eating bacteria” because, in rare cases, it can cause Necrotizing Fasciitis, a rapidly progressing infection that destroys skin and soft tissue. The infection may also spread into the bloodstream, leading to fever, chills, septic shock and other life-threatening complications. Health experts estimate that about one in five people with severe Vibrio Infections dies, sometimes within 48 hours of symptoms appearing.

Those most at risk include individuals with liver disease, diabetes, cancer, HIV, weakened immune systems, or those taking medications that suppress the immune system or reduce stomach acid. Severe infections may require hospitalization, intravenous antibiotics, surgery to remove damaged tissue, or even limb amputation.

Health Officials encourage residents to seek immediate medical attention if they develop redness, swelling, severe pain, warmth, fever or drainage from a wound after contact with seawater. Prompt treatment greatly improves the chances of recovery.

To reduce the Risk of Infection, the Louisiana Department of Health advises people with open wounds, cuts, recent surgical incisions or piercings to avoid contact with saltwater or brackish water. If exposure cannot be avoided, wounds should be covered with waterproof bandages and washed thoroughly with soap and clean water afterward.

Officials also recommend cooking seafood thoroughly, avoiding raw oysters, wearing gloves when handling raw shellfish and preventing cross-contamination between raw and cooked foods.

Louisiana is not alone in seeing an increase in Vibrio Infections. Similar cases have been reported this year in Florida and New York. State Health Officials will continue posting weekly updates throughout the remainder of the warm-water season as they monitor the growing Public Health Concern.