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Treatment of a Legionella pneumophila‐Colonized Water Distribution System Using Copper‐Silver Ionization and Continuous Chlorination

Amaya Biurrun , MD, Luis Caballero , MD, Carmen Pelaz , PhD, Elena León , ICP and Alberto Gago , MD
Infection Control and Hospital Epidemiology
Vol. 20, No. 6 (June 1999), pp. 426-428
DOI: 10.1086/501645
Stable URL: http://www.jstor.org/stable/10.1086/501645
Page Count: 3
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Treatment of a Legionella pneumophila‐Colonized Water Distribution System Using Copper‐Silver Ionization and Continuous Chlorination
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Abstract

ABSTRACT The detection in April 1997 of a case of nosocomial legionellosis in our hospital led to the discovery that both our hot‐ and cold‐water circuits were heavily colonized with Legionella pneumophila. Conventional methods for eradication of the organisms were unsuccessful, so a copper‐silver (Cu‐Ag) ionization system and a continuous chlorination system were installed. Five months later, the number of colonized sites decreased from an initial 58.3% to 16.7%.

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