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

  • Amaya Biurrun (a1), Luis Caballero (a2), Carmen Pelaz (a3), Elena León (a1) and Alberto Gago (a4)...

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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Hospital Nta Sra del Prado, Departamento de Medicina Preventiva, Crta de Madrid, Km 114, 45600 Talavera de la Reina (Toledo), Spain
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1. PW Muraca , VL Yu , A Goetz . Disinfection of water distribution systems for Legionella: a review of application procedures and methodologies. Infect Control Hosp Epidemiol 1990;11:7988.

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Infection Control & Hospital Epidemiology
  • ISSN: 0899-823X
  • EISSN: 1559-6834
  • URL: /core/journals/infection-control-and-hospital-epidemiology
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