SARASOTA, FL (WWSB) -- Summer's almost here and there's nothing like taking a dip, when the weather gets hot.
But, there's a new warning from health officials about a pool-linked illness that is on the rise.
This week, the Centers for Disease Control and Prevention issued a new warning.
New research shows outbreaks of the gastrointestinal illness caused by the microbe cryptosporidium have doubled since 2014.
Cases have risen threefold since 2004.
The bug is resistant to chlorine.
And when those are sick swim in public pools, the microbe can infect other swimmers when they swallow pool water.
Fortunately, there is one simple tip you can follow to prevent the spread of this disease.
If you've been sick with symptoms consistent with an intestinal bug, don't swim in public pools or at other aquatic facilities.
Wait two weeks until after symptoms have stopped before swimming again in these venues.