Reducing Legionella colonization of water systems with monochloramine.

From: Emerging Infectious Diseases | Date: April 1, 2006| Author: Besser, Richard E.; Conroy, Michael J.; Fields, Barry S.; Flannery, Brendan; Gelling, Lisa B.; Moore, Matthew R.; Rose, Charles E.; Salerno, James J.; Stevens, Valerie A.; Vugia, Duc J.; Weintraub, June M. | Copyright information

Monochloramine disinfection of municipal water supplies is associated with decreased risk for Legionnaires' disease. We conducted a 2-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 6 intervals. Prevalence ratios (PRs) comparing Legionella colonization before...

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