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Preventing Healthcare-Associated Legionellosis: Results after 3 Years of Continuous Disinfection of Hot Water with Monochloramine and an Effective Water Safety Plan

Author

Listed:
  • Maria Anna Coniglio

    (Legionella Reference Laboratory, Department of Medical, Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, University of Catania, via Santa Sofia 87, 95123 Catania, Italy
    Hygiene Complex Operative Unit, A.O.U. Policlinico—Vittorio Emanuele, via S. Sofia 87, 95123 Catania, Italy)

  • Margherita Ferrante

    (Hygiene Complex Operative Unit, A.O.U. Policlinico—Vittorio Emanuele, via S. Sofia 87, 95123 Catania, Italy)

  • Mohamed H. Yassin

    (Infection Control Department, University of Pittsburgh Medical Center (UPMC), Pittsburgh, PA 15213, USA)

Abstract

The purpose of this study is to report the experience of the implementation and application of a 3-year Water Safety Plan (WSP) together with the secondary disinfection of water by monochloramine to control and prevent healthcare-associated legionellosis in an Italian hospital strongly colonized by Legionella . Risk assessment was carried out by the WSP team. The main critical control points focused on in developing the WSP for the control of Legionella was the water distribution system. A sampling plan for the detection of Legionella was implemented. A widespread contamination of the hot water distribution system by L. pneumophila sg5 was found. Results after 3 years of the continuous disinfection of hot water with monochloramine indicate the eradication of Legionella . The implementation and application of a WSP in a hospital, together with the disinfection of the water distribution system with monochloramine, can be effective in controlling the growth of Legionella and in preventing nosocomial legionellosis.

Suggested Citation

  • Maria Anna Coniglio & Margherita Ferrante & Mohamed H. Yassin, 2018. "Preventing Healthcare-Associated Legionellosis: Results after 3 Years of Continuous Disinfection of Hot Water with Monochloramine and an Effective Water Safety Plan," IJERPH, MDPI, vol. 15(8), pages 1-11, July.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:8:p:1594-:d:160291
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    Citations

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    Cited by:

    1. Emanuele Luigi Sciuto & Domenico Corso & Sebania Libertino & Jan Roelof van der Meer & Giuseppina Faro & Maria Anna Coniglio, 2021. "A Miniaturized Microbe-Silicon-Chip Based on Bioluminescent Engineered Escherichia coli for the Evaluation of Water Quality and Safety," IJERPH, MDPI, vol. 18(14), pages 1-11, July.
    2. Annalisa Lombardi & Tonia Borriello & Elvira De Rosa & Fabiana Di Duca & Michele Sorrentino & Ida Torre & Paolo Montuori & Ugo Trama & Francesca Pennino, 2023. "Environmental Monitoring of Legionella in Hospitals in the Campania Region: A 5-Year Study," IJERPH, MDPI, vol. 20(8), pages 1-17, April.
    3. Isabella Marchesi & Stefania Paduano & Giuseppina Frezza & Luca Sircana & Elena Vecchi & Pietro Zuccarello & Gea Oliveri Conti & Margherita Ferrante & Paola Borella & Annalisa Bargellini, 2020. "Safety and Effectiveness of Monochloramine Treatment for Disinfecting Hospital Water Networks," IJERPH, MDPI, vol. 17(17), pages 1-11, August.
    4. Stefania Paduano & Isabella Marchesi & Maria Elisabetta Casali & Federica Valeriani & Giuseppina Frezza & Elena Vecchi & Luca Sircana & Vincenzo Romano Spica & Paola Borella & Annalisa Bargellini, 2020. "Characterisation of Microbial Community Associated with Different Disinfection Treatments in Hospital hot Water Networks," IJERPH, MDPI, vol. 17(6), pages 1-17, March.

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