Hospital-acquired legionnaires disease in a university hospital: impact of the copper-silver ionization system.

Mòdol, Josep; Sabrià, Miquel; Reynaga, Esteban; Pedro-Botet, Maria L; Sopena, Nieves; Tudela, Pere; Casas, Irma; Rey-Joly, Celestino · Clin Infect Dis · 2007

retrospective_cohort · Level III

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Abstract

We evaluated the impact of the copper-silver ionization system in a hospital where hyperendemic nosocomial legionellosis and was present and all previous disinfection measures had failed. After implementation of the copper-silver ionization system, environmental colonization with Legionella species decreased significantly, and the incidence of nosocomial legionellosis decreased dramatically, from 2.45 to 0.18 cases per 1000 patient discharges.

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