The entire loved ones could be harmed through Cryptosporidium, a water-borne microscopic parasite that can easily resist temp extremes and chlorination. Polluted water positions notable health issues and currently no antibiotics or other clinical therapies properly eliminate this protozoan. Higher levels of Crypto passed through filters as well as were actually not dealt with through water procedures in Milwaukee, Wisconsin in 1993, causing the largest documented waterborne health condition incident in U.S. past history.