Flesh-Eating Bacteria Linked to Five Deaths in Louisiana

Louisiana health officials reported at least five deaths this year attributed to Vibrio vulnificus, a flesh-eating bacteria found in warm coastal waters. Nine total cases have been reported statewide in 2026, with all patients hospitalized.

Exposure Through Wounds

The Louisiana Department of Health stated that all nine patients contracted the bacteria through wounds exposed to seawater and had underlying health conditions, including cancer, liver disease, HIV, thalassemia, and those receiving immune-suppression treatments.

Rising Cases and Climate Change

Louisiana has averaged seven cases and one fatality involving Vibrio vulnificus annually over the past decade. In 2025, there were 26 cases and five deaths. Florida’s Department of Health has also recorded two deaths this year, with 19 deaths in 2024 and five in 2025, often linked to major storms and subsequent flooding. Rising water temperatures, exacerbated by climate change, are contributing to increased infection risks in new regions.

Vibriosis and Prevention

Vibrio vulnificus is one of about a dozen species that can cause vibriosis. Approximately one in five people who contract the bacteria will die. Symptoms of wound infections include fever, skin discoloration, drainage, and pain. Bloodstream infections can cause fever, chills, and dangerously low blood pressure. Gastrointestinal symptoms include diarrhea, stomach cramps, nausea, and vomiting.

Health officials advise avoiding salt or brackish water and thoroughly cooking seafood. Washing wounds with soap after potential exposure is also recommended.