Overview

• Louisiana has reported 26 Vibrio vulnificus infections in 2025, all requiring hospitalization, with five deaths confirmed by the state health department.
• State figures indicate 85% of Louisiana cases involved wound exposure to coastal waters and 92% of patients had at least one underlying medical condition.
• In South Korea, the KDCA recorded 19 Vibrio sepsis cases from January through August, including 14 in August, with eight deaths for a 42.1% fatality rate.
• Authorities emphasize that Vibrio proliferates in warm brackish and saltwater, with most U.S. illnesses from May to October and about half of national cases occurring in Gulf states.
• Prevention guidance urges avoiding raw or undercooked seafood, keeping wounds out of seawater, washing exposed cuts promptly, and seeking urgent care for symptoms such as fever or blistering skin lesions.