A growing number of cases in several Gulf Coast states have raised concerns about the increasing risk of exposure to Vibrio vulnificus, a bacteria that can cause severe infections and even death. So far this year, at least 60 confirmed cases have been reported in the US, with eight people dying from the infection.
The bacteria thrives in warm coastal waters and can spread through open wounds exposed to contaminated seawater or through consumption of raw or undercooked shellfish. Infection with Vibrio vulnificus can range from mild to severe and lead to life-threatening complications such as necrotizing wounds and blood poisoning.
Louisiana has seen a particularly sharp spike in severe infections, with 17 hospitalizations due to the bacteria and four resulting in death. The state’s Department of Health has issued an alert warning residents to take precautions when coming into contact with warm coastal waters or eating raw shellfish.
While Vibrio vulnificus is relatively rare, cases are increasing in the US, particularly during the summer months when concentrations of the bacteria are higher in the water due to warmer temperatures. Experts attribute the rise in cases to a combination of factors, including climate change, extreme weather events, and increased water activities.
Symptoms of Vibrio vulnificus can range from mild to severe and include watery diarrhea, abdominal cramps, nausea, vomiting, fever, and redness and swelling around the wound. If left untreated, infections can progress rapidly and lead to life-threatening complications such as necrotizing fasciitis and septic shock.
Anyone who has frequent contact with warm coastal waters or raw shellfish may be at higher risk of exposure. Certain individuals, including those over 65, immunocompromised, or with liver or kidney disease, are more likely to become infected or develop severe illness from Vibrio vulnificus.
To reduce the risk of exposure, it is essential to avoid contact with seawater or brackish water if you have an open wound or broken skin. Cover wounds with waterproof bandages, wear protective shoes, and cook all shellfish to a safe internal temperature before consumption. If symptoms occur, seek medical attention immediately.
Source: https://www.today.com/health/disease/flesh-eating-bacteria-vibrio-rising-2025-rcna223152