Health officials warn of a new parasite that could be hiding in public pools.
More than two dozen kids have now become sick just from swimming. Health officials are calling the parasite, Crypto. It's been found in several public pools in North Carolina, and now the rush is on to get them hyper-chlorinated.
Crypto has recently appeared in pools in Wake County, North Carolina, which includes Raleigh. Because of the parasite, over two dozen cases of a gastrointestinal illness have been reported.
Last year, the CDC reviewed inspections from tens of thousands of public swimming pools nationwide, and found that almost 80 percent had at least one health or safety violation.
What you can do before you take a dip -- see if you can see the bottom of the pool. If the water is too cloudy, it's reason for concern. Also, ask pool employees how often the water is tested.
High temperatures kill the chlorine in a pool faster.