An Aug. 2009 outbreak of cryptosporidium amongst children and adults who swam at the Merthyr Tydfil centre in Wales was caused by the smearing of feces on the toddler slide on Aug. 22, 2009.

Officials said it was important people with diarrhea did not go swimming.

A total of 45 cases of the illness were confirmed through laboratory testing and the pool was closed for three weeks following the confirmation of the outbreak. Over 100 people were estimated to have been sickened during the outbreak.

The report (which is available through the BBC story) also said,

"Gaps and weaknesses in policies and operational procedures and non-adherence to procedures in relation to incidents such as fecal accidents are also likely to have contributed to spreading cryptosporidium contamination widely at the time."