Florida beachgoers are being warned about a flesh-eating bacteria that could be in seawater.
Health officials across the state say the bug can invade cuts and scrapes and lead to skin ulceration.
The infection can also be transmitted through eating or handling contaminated oysters and shellfish causing stomach issues.
That can be avoided by cooking them.
At least 11 Floridians have contracted the Vibrio vulnificus so far this year and two have died.
In 2013, 41 people were infected and 11 died.
Other states have reported infections as well, including Alabama, Louisiana, Texas, and Mississippi.
The Centers For Disease Control says patients typically recover with the help of antibiotics, but skin-related infections may require surgery and, sometimes, amputation.
Tips to stay healthy include exposing open wounds to warm saltwater, brackish water, or shellfish and cooking shellfish thoroughly before consuming it.