Treatment of a Legionella pneumophila-colonized water distribution system using copper-silver ionization and continuous chlorination.

@article{Biurrun1999TreatmentOA,
  title={Treatment of a Legionella pneumophila-colonized water distribution system using copper-silver ionization and continuous chlorination.},
  author={A. Biurrun and L. Caballero and C. Pelaz and E. Leon and A. Gago},
  journal={Infection control and hospital epidemiology},
  year={1999},
  volume={20 6},
  pages={
          426-8
        }
}
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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