What's Happening?
Louisiana health officials have issued a warning to residents following a surge in cases of Vibrio vulnificus, a potentially deadly, flesh-eating bacteria found in warm coastal waters and raw seafood. The Louisiana Department of Health has confirmed 17 infections statewide in 2025, all requiring hospitalization, with four fatalities reported. Historically, the state averaged seven cases and one death annually during the same period. The bacteria can cause illness when an open wound is exposed to coastal waters or when consuming raw or undercooked seafood, particularly oysters. This year, 75% of infections have been linked to open wounds exposed to seawater. Vibrio bacteria thrive in warmer months, typically from May through October.
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Why It's Important?
The rise in Vibrio vulnificus cases poses a significant public health concern, particularly for individuals with chronic health conditions such as liver disease, cancer, diabetes, HIV, or those who are immunocompromised, who face a higher risk of severe illness or death. The bacteria can lead to gastrointestinal symptoms, wound infections, or bloodstream infections, potentially resulting in blistering skin lesions, amputation, or death. The Centers for Disease Control and Prevention (CDC) notes that about 1 in 5 people with Vibrio vulnificus die, sometimes within 48 hours of becoming ill. The warning underscores the need for increased public awareness and preventive measures to mitigate the risk of infection.
What's Next?
Residents are advised to avoid brackish or saltwater with open wounds, cover wounds with waterproof bandages, thoroughly clean any cuts exposed to water or raw seafood, wear protective gloves when handling raw shellfish, and avoid eating raw or undercooked oysters or seafood, especially if in a high-risk group. The CDC provides additional resources and prevention tips on its Vibrio page.
