According to a study published online May 20 in the CDC's Morbidity and Mortality Weekly Report, thousands of venues in the U.S. where people swim or wade in treated water — public pools, hot tubs, water playgrounds and parks — had to be closed in 2013 due to health and safety violations. And in 1 in 8 of those closures, conditions were so unhealthy or unsafe that the venue had to be shut down immediately, the report said. [Tips for Keeping Kids Safe in Swimming Pools]
For the report, researchers looked at data from the Network for Aquatic Facility Inspection Surveillance (NAFIS) database gathered in 2013. The data came from local inspection agencies in the five states in the U.S. with the most public aquatic facilities: California, Texas, Arizona, Florida and New York.
In total, officials carried out 84,187 inspections at 48,632 venues, according to the report. In 7,662 of the inspections, officials found violations related to disinfectant concentrations, and those violations create opportunities for the spread of infectious diseases.
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