A controlled evaluation was made of the efficacy of copper-silver ionization in eradicating Legionella pneumophila from a hospital water supply.
Copper-silver ionization units were installed on the hot water recirculation line of one building with water fixtures positive for Legionella species.
Another building with the same water supply served as a control.
Legionella species persisted within the system when copper and silver concentrations were<0.3 and<0.03 ppm, respectively.
When copper and silver concentrations were>0.4 and>0.04 ppm, respectively, there was a significant decrease in Legionella species colonization, but the percentage of water fixtures positive for organisms was unchanged in the control building.
Mots-clés Pascal : Legionella pneumophila, Legionellaceae, Bactérie, Approvisionnement eau, Efficacité, Désinfection, Surveillance sanitaire, Cuivre, Argent, Ionisation, Hôpital, Hygiène
Mots-clés Pascal anglais : Legionella pneumophila, Legionellaceae, Bacteria, Water supply, Efficiency, Disinfection, Sanitary surveillance, Copper, Silver, Ionization, Hospital, Hygiene
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 94-0478899
Code Inist : 002B05B01. Création : 199501.