Cases of Vibrio vulnificus, a flesh-eating bacteria, have almost doubled in Florida this year. As of December 13th, 2024, there have been 83 confirmed cases of Vibrio vulnificus in Florida compared to 46 cases in 2023. 

Magic Kingdom entrance the day after Hurricane Milton

Why did cases increase so significantly this year? Health officials are blaming hurricanes.  Florida was hit by two large hurricanes this year, Hurricane Helene and Hurricane Milton. These hurricanes caused widespread damage, but they also resulted in increased cases of Vibrio vulnificus according to Florida health officials.Vibrio vulnificus is a bacterium that usually lives in warm, brackish seawater, and concentrations of the bacteria can rise after hurricanes.

©The News Press

The Vibrio bacteria can cause illness when ingested or when open wounds are exposed to contaminated water. Concentrations of the bacteria may rise after heavy rainfall and flooding, “particularly in brackish and saltwater environments.” Both Hurricane Helene and Hurricane Milton brought heavy rain and flooding to Florida, which is likely why cases of Vibrio vulnificus saw an increase in 2024. In 2024, there were 83 cases and 17 deaths, and in 2023 there were 46 cases and 11 deaths. In 2022, there were 74 cases and 17 deaths, with the higher number of cases being attributed to Hurricane Ian. 

Overcast skies after Hurricane Milton

Health officials warn residents and those traveling to Florida to “avoid swimming or wading in floodwaters, standing water, seawater, and brackish water, if possible,” and to”cover open cuts or wounds with waterproof bandages if they could come in contact with floodwaters, standing water, seawater, or brackish water.” The bacteria can also be found in raw shellfish, particularly oysters, from warm coastal waters during the summer months. 

Cinderella Castle during Hurricane Helene

According to the Journal of American Medical Association, the mortality rate for Vibrio vulnificus infections is about 33%, and those who have more severe symptoms will want to seek medical attention immediately to begin antibiotics. It is important to be aware of activities that could lead to illness when traveling.

Hurricane Helene

Some good news though, is that the elevated cases of Vibrio vulnificus are found in counties outside of Disney World. In 2024, the following counties saw increased cases: Citrus, Hernando, Hillsborough, Lee, Pasco, Pinellas, and Sarasota Counties. Disney World is located in Orange and Osceola Counties. However, it is always a good idea to be alert while traveling!

Stay tuned to DFB for more travel and Disney World news.