Louisiana Department of Health urges caution to prevent Vibrio vulnificus infection

The Louisiana Department of Health is urging residents to take precautions to prevent infection from Vibrio vulnificus. The department is seeing a higher number of Vibrio vulnificus cases and deaths than are typically reported.

A Louisiana health official reported two more deaths from the flesh-eating vibrio bacteria, part of 14 more infections. It brings the state’s fatality count attributed to the pathogen this year to six.

The two most recent deaths involved people who ate oysters harvested in Louisiana at two separate restaurants — one in Louisiana and another in Florida – according to Jennifer Armentor, molluscan shellfish program administrator from the Louisiana Department of Health.

Armentor shared information about the vibrio-related deaths Tuesday during a regular meeting of the Louisiana Oyster Task Force, held at New Orleans Lakefront Airport.

“It’s just prolific right now,” Armentor told task force members.

She did not provide any additional information about the individuals who died or where they ate.

So far in 2025, 17 cases of Vibrio vulnificus have been reported among Louisiana residents. All of these patients were hospitalized, and four of these illnesses resulted in death. During the same time period over the previous 10 years, an average of seven Vibrio vulnificus cases and one death have been reported each year in Louisiana.

Of those 17 cases, 75% reported wound/seawater exposure. Vibrio are bacteria that naturally live in warm coastal waters and are found in higher numbers between May and October, when water temperatures are warmer.

Vibrio bacteria can cause illness when an open wound is exposed to coastal waters or when a person eats raw or undercooked seafood, particularly oysters. Vibrio infection can result in gastrointestinal illness, wound infection, or blood poisoning (bloodstream infection).

To learn more about the bacteria and its symptoms, visit https://ldh.la.gov/ .