I just read an article about a parasite that is resistant to chlorine, called Cryptosporidium (or "crypto"). The cases of crypto-infection have doubled in the last year, and symptoms include stomach cramps, diarrhea, vomiting, nausea, and low-grade fevers.
The cause is from human and animal feces in the water, and when ingested, can cause the above symptoms which can last for 2 weeks.
One of the tips to keep public pools safe is to check your child's swim diaper often, and promptly remove them from the pool if they need to be changed. Another tip is to make sure your child's "diaper-changing area" is thoroughly clean (preferably with soap and water) before entering the pool.
My son and I take "swimming" lessons, and this does concern me! I'm in the pool with him, and I don't want either one of us to contract this disease!
Does this change the way you feel about taking your children (and yourself) to a public pool?