Vibrio vulnificus claims fourth Florida life in 2026

Vibrio vulnificus has been linked to a fourth death in Florida this year, according to updated data from the Florida Department of Health. The latest fatality involved a Broward County resident between the ages of 75 and 79, while state records show 21 confirmed infections and four deaths in Florida in 2026 as of the department’s September 10 update. FFlorida Department of Health

The development has renewed attention on a rare but potentially life-threatening bacterial infection associated with warm coastal waters, raw or undercooked shellfish and exposure of open wounds to seawater.

The bacterium is sometimes described in news coverage as a “flesh-eating bacteria” because severe wound infections can cause tissue destruction, including a condition known as necrotizing fasciitis. However, Vibrio vulnificus is a naturally occurring marine bacterium, not a contaminant that necessarily indicates polluted water or improperly handled seafood. FFlorida Department of Health+1

The latest Florida figures underscore why health officials continue to warn people about raw oysters and other forms of exposure, particularly during warmer months.

Vibrio vulnificus Florida cases reach 21 in 2026

Florida’s latest health department data list 21 confirmed Vibrio vulnificus cases and four deaths in 2026. The updated figures include fatalities in Bay, Broward, Marion and Palm Beach counties. FFlorida Department of Health

The Broward County fatality is the latest addition to the state’s death count. Earlier reports identified deaths involving residents of Bay, Palm Beach and Marion counties.

Florida’s annual numbers can vary considerably. The state recorded 33 cases and five deaths in 2025. In 2024, Florida recorded 82 cases and 19 deaths, while 2022 saw 74 cases and 17 deaths. The Florida Department of Health has noted unusual increases in some years associated with hurricane impacts and flooding. FFlorida Department of Health

Those historical figures are important context because the current number should not be interpreted as evidence of a continuous statewide outbreak. Instead, Vibrio vulnificus infections are relatively uncommon but can become severe rapidly in some patients.

The Centers for Disease Control and Prevention says Vibrio bacteria naturally occur in coastal waters. People can become infected after swallowing the bacteria or when a wound is exposed to contaminated coastal water. CCDC+1

How Vibrio vulnificus spreads

There are two major routes of infection.

The first is consuming raw or undercooked shellfish, especially oysters. Oysters filter seawater as they feed, allowing bacteria that are naturally present in the surrounding water to accumulate inside their tissues. Eating the oysters raw or insufficiently cooked can therefore expose consumers to Vibrio. CCDC

The second route involves an open wound.

A person can develop a wound infection when a cut, scrape, surgical wound, recent piercing or tattoo comes into contact with coastal water containing Vibrio. The CDC specifically warns that saltwater and brackish water can carry the bacteria. CCDC

This means people do not necessarily have to eat oysters to become infected.

Swimming, wading, fishing or handling raw seafood can create opportunities for exposure if a person has broken skin.

Florida health officials also caution that storm and flood waters can increase exposure risks. Hurricanes and coastal flooding can change water conditions and bring people into contact with contaminated standing water. FFlorida Department of Health

Why raw oysters are a particular concern

Raw oysters are one of the best-known sources of Vibrio vulnificus infection.

The CDC says it is impossible to determine whether an oyster contains harmful Vibrio simply by looking at it. An oyster contaminated with dangerous bacteria may look, smell and taste normal. CCDC

That makes cooking especially important.

The CDC recommends cooking oysters and other shellfish thoroughly rather than relying on appearance or other methods. Hot sauce, lemon juice and alcohol do not kill Vibrio bacteria, according to federal and Florida food-safety guidance. CCDC+1

Florida’s Department of Agriculture and Consumer Services similarly advises consumers to enjoy oysters fully cooked. The agency says fully cooking oysters kills Vibrio vulnificus. FFDACS

The risk also cannot be eliminated simply by choosing oysters from a reputable restaurant or an approved harvesting area. Florida officials explain that Vibrio vulnificus occurs naturally in marine waters, meaning its presence is not necessarily the result of pollution or poor food handling. FFDACS

Vibrio vulnificus symptoms to watch for

Symptoms can depend on how the infection occurs.

People who develop a gastrointestinal illness after consuming contaminated seafood may experience:

• Watery diarrhea
• Stomach cramps
• Nausea
• Vomiting
• Fever
• Chills

A wound infection can cause redness, pain, swelling, warmth, discoloration and discharge around the affected area. FFlorida Department of Health+1

More serious infections can enter the bloodstream.

Signs of a bloodstream infection can include fever, chills, dangerously low blood pressure and blistering skin lesions. Severe infections may progress rapidly and require intensive medical treatment. FFlorida Department of Health

The CDC says some Vibrio vulnificus infections can lead to necrotizing fasciitis, in which tissue around a wound dies. Severe wound infections can require surgery, including removal of infected or dead tissue and, in some cases, amputation. CCDC

Because severe disease can progress quickly, people who develop concerning symptoms after eating raw seafood or exposing a wound to coastal water should seek medical attention promptly and tell healthcare providers about the possible exposure.

Who faces the greatest risk?

Although anyone can become infected, severe illness is particularly concerning for people with certain underlying conditions.

Florida health officials identify chronic liver disease and weakened immune systems as important risk factors. Other conditions identified by Florida’s food-safety authorities include diabetes, cancer, hemochromatosis and certain stomach or immune disorders. FFlorida Department of Health+1

Older adults may also be more likely to have one or more of these underlying conditions.

This does not mean that healthy people are completely protected. The CDC emphasizes that Vibrio vulnificus infections can be serious and recommends precautions for everyone, with particular attention to people at increased risk. CCDC

The CDC estimates that about one in five people with a Vibrio vulnificus infection die, sometimes within a day or two after becoming ill. CCDC+1

Florida’s health department gives a higher fatality estimate specifically for bloodstream infections, noting that such infections are fatal about 50% of the time. FFlorida Department of Health

These figures describe different populations and should not be treated as interchangeable: overall infection mortality and mortality among people who develop bloodstream infections are separate measures.

How to prevent Vibrio vulnificus infection

Prevention largely focuses on reducing exposure.

The simplest food-safety measure is to avoid eating raw or undercooked oysters and other shellfish. Thorough cooking destroys harmful bacteria. CCDC+1

The CDC also recommends preventing raw seafood and its juices from contaminating other foods and washing hands after handling raw shellfish. People at increased risk should consider wearing protective gloves when handling raw seafood. CCDC

For people visiting beaches or coastal areas, protecting wounds is equally important.

Anyone with an open wound should avoid exposing it to saltwater or brackish water when possible. If contact occurs, the CDC recommends washing cuts and wounds thoroughly with soap and clean running water. Waterproof bandages can provide protection when exposure cannot be avoided. CCDC

People at higher risk should also consider wearing clothing and footwear that reduce the chance of cuts and scrapes while in coastal waters. CCDC

Cooking oysters can significantly reduce the risk

Consumers who enjoy oysters do not necessarily have to eliminate them from their diet.

The major distinction is between raw and properly cooked shellfish.

Florida officials provide specific cooking recommendations. For oysters in the shell, consumers can boil them for three to five minutes after the shells open or steam them for four to nine minutes. Shucked oysters can be boiled or simmered for at least three minutes, fried for at least three minutes at 375 degrees Fahrenheit, broiled for three minutes or baked for 10 minutes at 450 degrees Fahrenheit. FFDACS

The CDC also provides cooking guidance for shellfish and emphasizes that heat, rather than condiments such as lemon juice or hot sauce, is what destroys harmful bacteria. CCDC+1

Why Florida sees Vibrio infections

Florida provides an environment where Vibrio vulnificus can naturally occur because the bacterium thrives in warm coastal and brackish waters.

The CDC notes that most infections in the United States occur during warmer months, although infections can happen at other times of the year. CCDC

Storms and flooding can also complicate the risk environment.

Florida’s health department has previously documented unusual increases in cases following major hurricanes, including Hurricane Ian in 2022 and Hurricane Helene in 2024. FFlorida Department of Health

The state’s data show how significant those variations can be. Florida reported 74 cases and 17 deaths in 2022 and 82 cases and 19 deaths in 2024, compared with 33 cases and five deaths in 2025. FFlorida Department of Health

The figures demonstrate that annual totals can change substantially depending on environmental conditions and exposure patterns.

What the latest Florida death means for consumers

The fourth Florida death reported in 2026 is a reminder of the potential severity of Vibrio vulnificus, but the state’s 21 confirmed cases remain a small number relative to Florida’s overall population.

The risk is not limited to oysters, either.

People can be exposed through warm coastal water, particularly when they have an open wound. Raw or undercooked shellfish remains another important source of infection. FFlorida Department of Health+1

For consumers, the most practical precautions are straightforward: cook shellfish thoroughly, keep raw seafood separate from ready-to-eat foods, protect cuts and wounds from coastal water, and seek medical attention quickly when concerning symptoms develop after a possible exposure.

The latest Florida Department of Health figures provide the most current statewide snapshot available as of September 10, 2026. As additional cases are investigated or reported, the state’s totals can change.

For the latest official information, readers should consult the Florida Department of Health’s Vibrio information page and the CDC’s Vibrio prevention guidance.