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1 results

  • Deactivation of SARS-CoV-2 with pulsed-xenon ultraviolet light: Implications for environmental COVID-19 control

  • Part of
  • Sarah E. Simmons, Ricardo Carrion, Jr, Kendra J. Alfson, Hilary M. Staples, Chetan Jinadatha, William R. Jarvis, Priya Sampathkumar, Roy F. Chemaly, Fareed Khawaja, Mark Povroznik, Stephanie Jackson, Keith S. Kaye, Robert M. Rodriguez, Mark A. Stibich
  • Journal:
    Infection Control & Hospital Epidemiology / Volume 42 / Issue 2 / February 2021
    Published online by Cambridge University Press:
    03 August 2020, pp. 127-130
    Print publication:
    February 2021
    • Article
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  • Objectives:

    Prolonged survival of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on environmental surfaces and personal protective equipment may lead to these surfaces transmitting this pathogen to others. We sought to determine the effectiveness of a pulsed-xenon ultraviolet (PX-UV) disinfection system in reducing the load of SARS-CoV-2 on hard surfaces and N95 respirators.

    Methods:

    Chamber slides and N95 respirator material were directly inoculated with SARS-CoV-2 and were exposed to different durations of PX-UV.

    Results:

    For hard surfaces, disinfection for 1, 2, and 5 minutes resulted in 3.53 log10, >4.54 log10, and >4.12 log10 reductions in viral load, respectively. For N95 respirators, disinfection for 5 minutes resulted in >4.79 log10 reduction in viral load. PX-UV significantly reduced SARS-CoV-2 on hard surfaces and N95 respirators.

    Conclusion:

    With the potential to rapidly disinfectant environmental surfaces and N95 respirators, PX-UV devices are a promising technology to reduce environmental and personal protective equipment bioburden and to enhance both healthcare worker and patient safety by reducing the risk of exposure to SARS-CoV-2.