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Effect of a UV-C Automatic Last-Generation Mobile Robotic System on Multi-Drug Resistant Pathogens

Author

Listed:
  • Carla Russo

    (Microbiology and Clinical Microbiology Section, Department of Medicine and Surgery, University of Perugia, 06129 Perugia, Italy)

  • Desirée Bartolini

    (Unit of Human, Clinical and Forensic Anatomy, Department of Medicine and Surgery, University of Perugia, 06129 Perugia, Italy)

  • Cristina Corbucci

    (Microbiology Unit, Santa Maria della Misericordia Hospital, 06129 Perugia, Italy)

  • Anna Maria Stabile

    (Unit of Human, Clinical and Forensic Anatomy, Department of Medicine and Surgery, University of Perugia, 06129 Perugia, Italy)

  • Mario Rende

    (Unit of Human, Clinical and Forensic Anatomy, Department of Medicine and Surgery, University of Perugia, 06129 Perugia, Italy)

  • Antimo Gioiello

    (Department of Pharmaceutical Sciences, University of Perugia, 06122 Perugia, Italy)

  • Gabriele Cruciani

    (Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy)

  • Antonella Mencacci

    (Microbiology and Clinical Microbiology Section, Department of Medicine and Surgery, University of Perugia, 06129 Perugia, Italy)

  • Francesco Galli

    (Department of Pharmaceutical Sciences, University of Perugia, 06122 Perugia, Italy
    Authors contributed equally to this work.)

  • Donatella Pietrella

    (Microbiology and Clinical Microbiology Section, Department of Medicine and Surgery, University of Perugia, 06129 Perugia, Italy
    Authors contributed equally to this work.)

Abstract

Background: Healthcare-associated infections caused by multi-drug resistant (MDR) pathogens are associated with increased mortality and morbidity among hospitalized patients. Inanimate surfaces, and in particular high-touch surfaces, have often been described as the source for outbreaks of nosocomial infections. The present work aimed to evaluate the efficacy of a last-generation mobile (robotic) irradiation UV-C light device R2S on MDR microorganisms in inanimate surfaces and its translation to hospital disinfection. Methods: The efficacy of R2S system was evaluated in environmental high-touch surfaces of two separate outpatient rooms of Perugia Hospital in Italy. The static UV-C irradiation effect was investigated on both the bacterial growth of S. aureus , MRSA, P. aeruginosa , and K. pneumoniae KPC and photoreactivation. The antimicrobial activity was also tested on different surfaces, including glass, steel, and plastic. Results: In the environmental tests, the R2S system decreased the number of bacteria, molds, and yeasts of each high-touch spot surface (HTSs) compared with manual sanitization. UV-C light irradiation significantly inhibits in vitro bacterial growth, also preventing photoreactivation. UV-C light bactericidal activity on MDR microorganisms is affected by the type of materials of inanimate surfaces. Conclusions: The last-generation mobile R2S system is a more reliable sanitizing procedure compared with its manual counterpart.

Suggested Citation

  • Carla Russo & Desirée Bartolini & Cristina Corbucci & Anna Maria Stabile & Mario Rende & Antimo Gioiello & Gabriele Cruciani & Antonella Mencacci & Francesco Galli & Donatella Pietrella, 2021. "Effect of a UV-C Automatic Last-Generation Mobile Robotic System on Multi-Drug Resistant Pathogens," IJERPH, MDPI, vol. 18(24), pages 1-12, December.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:24:p:13019-:d:699104
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    References listed on IDEAS

    as
    1. Beatrice Casini & Benedetta Tuvo & Maria Luisa Cristina & Anna Maria Spagnolo & Michele Totaro & Angelo Baggiani & Gaetano Pierpaolo Privitera, 2019. "Evaluation of an Ultraviolet C (UVC) Light-Emitting Device for Disinfection of High Touch Surfaces in Hospital Critical Areas," IJERPH, MDPI, vol. 16(19), pages 1-10, September.
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