“Vibriobacteria, commonly found in warm coastal waters, can cause illness when ingested or when open wounds are exposed to contaminated water. After heavy rainfall and flooding, the concentration of these bacteria may rise, particularly in brackish and saltwater environments,” the department said.

The health department said residents and visitors should avoid skin contact with floodwaters, particularly those who have any open wounds. Those who come into physical contact with the water should wash their hands with soap and clean water for 20 seconds to avoid possible infection.

Hurricane Milton is set to make landfall on the west coast of Florida as a Category 4 hurricane sometime late Wednesday. More than 5.5 million residents along the coast have been directed to leave the area, in one of the biggest evacuations in the history of the state.