Published in Medical Letter on the CDC and FDA, May 24th, 2006
"Monochloramine disinfection of municipal water supplies is associated with decreased risk for Legionnaires' disease. We conducted a two-year, prospective, environmental study to evaluate whether converting from chlorine to monochloramine for water disinfection would decrease Legionella colonization of hot water systems. Water and biofilm samples from 53 buildings were collected for Legionella culture during six intervals. Prevalence ratios (PRs) comparing Legionella colonization before and after monochloramine disinfection were adjusted for water system characteristics,"...
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