Louisiana reports five vibriosis deaths in 2024

Louisiana health officials are urging residents to take precautions against a rare but dangerous flesh-eating bacterial infection after five people died this year from vibriosis, a disease caused by bacteria found in warm seawater.

The warning comes as summer heats up, raising water temperatures and increasing the risk of exposure. Vibriosis is caused by bacteria like Vibrio vulnificus, which thrives in warm, brackish coastal waters—common in Louisiana’s Gulf Coast. The bacteria can enter the body through open wounds or by eating raw or undercooked seafood, particularly oysters. While infections are uncommon, they can progress rapidly, leading to severe tissue damage, organ failure, and death within days if untreated. The five fatalities this year already match the total reported in Louisiana in all of 2023, signaling a potential uptick.

Most of the cases involved people with pre-existing health conditions like liver disease, diabetes, or weakened immune systems, who are more vulnerable to severe outcomes. Health officials reported at least 19 confirmed cases so far in 2024, with infections peaking in warmer months. Exposure often happens when swimming in contaminated water or handling raw seafood without proper protection. While healthy individuals may experience mild illness, the infection can escalate quickly for those at higher risk. Doctors emphasize early treatment with antibiotics, but even then, survival is not guaranteed.

Officials are advising people to avoid swimming in warm, brackish water with open wounds and to wear protective clothing when handling raw seafood. They also recommend cooking shellfish thoroughly and keeping cuts clean and covered. Public health campaigns are ramping up in coastal communities, where oyster harvesting is a major industry. With climate change raising ocean temperatures, experts warn the risk of vibriosis may grow in the coming years. The state health department is tracking cases closely and urging hospitals to stay alert for symptoms like sudden blistering, swelling, or fever after exposure.