Hurricane Milton swept through Central Florida earlier this month, swamping communities across the region.
However, the Florida Department of Health issued a notice as Milton made its approach, warning residents to avoid exposure to floodwaters as the storm passed through.
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“While floodwaters are present, there is an increased risk of Vibrio infections, such as Vibrio vulnificus, which can be life-threatening,” the release reads.
But what is “Vibrio vulnificus?”
In short: it’s a type of flesh-eating bacterium.
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According to the FDOH, these bacteria can be found in “warm, brackish seawater,” which can be blown inland by strong storms like Milton.
In addition, the FDOH explained that those with compromised immune systems, liver disease or open wounds are at higher risk for Vibrio vulnificus.
“Vibrio bacteria, commonly found in warm coastal waters, can cause illness when ingested or when open wounds are exposed to contaminated water,” FDOH officials said.
FDOH officials added that symptoms of infection can include the following:
- Diarrhea
- Vomiting
- Abdominal pain
- Fever
- Chills
- Fast/High heart rate
- Confusion
- Disorientation
According to HealthDay, there were just six confirmed cases of Vibrio vulnificus before Hurricane Helene arrived in September, though that figure has since exploded to 74 confirmed cases as of Friday afternoon.
Of those cases, the FDOH reported that 13 died.
In Central Florida, there have been 10 reported cases this year so far. Two deaths were reported out of Seminole County.
| County | Vibrio Vulnificus Cases (2024) | Vibrio Vulnificus Deaths (2024) |
|---|---|---|
| Brevard | 5 | 0 |
| Seminole | 2 | 2 |
| Sumter | 1 | 0 |
| Volusia | 2 | 0 |
Over the past decade, annual reported cases statewide have typically topped out around 50. However, 2022 saw the highest number of reported deaths during this timeframe, with 17 total for the year.
The FDOH urges those who experience symptoms associated with Vibrio vulnificus to seek medical attention immediately — especially after being exposed to floodwaters.
Other safety precautions include:
- Avoid swimming or wading in floodwaters, standing water, sea water, and brackish water, if possible.
- Cover open cuts or wounds with waterproof bandages if they could come in contact with floodwaters, standing water, sea water, or brackish water.
- Wash skin and any open cuts or wounds thoroughly with soap and clean water after any contact with floodwaters.
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