• Am J Infect Control · Sep 2020

    Disinfection of N95 masks artificially contaminated with SARS-CoV-2 and ESKAPE bacteria using hydrogen peroxide plasma: Impact on the reutilization of disposable devices.

    • Gabriela Ibáñez-Cervantes, Juan Carlos Bravata-Alcántara, Alan Steve Nájera-Cortés, Sergio Meneses-Cruz, Laura Delgado-Balbuena, Clemente Cruz-Cruz, Emilio Mariano Durán-Manuel, Monica Alethia Cureño-Díaz, Erika Gómez-Zamora, Sonia Chávez-Ocaña, Oscar Sosa-Hernández, Antonio Aguilar-Rojas, and Juan Manuel Bello-López.
    • División de Investigación, Hospital Juárez de México, Ciudad de México, Mexico.
    • Am J Infect Control. 2020 Sep 1; 48 (9): 1037-1041.

    IntroductionOne of the serious consequences of the SARS-CoV-2 pandemic is the shortage of protective equipment for health personnel. N95 masks are considered one of the essential protective equipment in the management of patients with COVID-19. The shortage of N95 masks implies potential health risks for health personnel and significant economic losses for the health institution. The objective of this work was to investigate the disinfection of N95 masks artificially contaminated with SARS-CoV-2 and ESKAPE bacteria by using hydrogen peroxide plasma.Material And MethodsWe examined the disinfection capacity of hydrogen peroxide plasma against the SARS-CoV-2 and 2 members of the ESKAPE bacteria (Acinetobacter baumannii and Staphylococcus aureus) through a study of artificial contamination in situ of N95 masks. Amplification of specific genes by real-time reverse transcription polymerase chain reaction of SARS-CoV-2 and microbiological culture of ESKAPE bacteria was performed before and after the disinfection process.ResultsSARS-CoV-2 was not detected in all assays using 5 different concentrations of the virus, and A baumannii and S aureus were not cultivable with inoculums of 102 to 106 CFU after disinfection tests of N95 masks with hydrogen peroxide plasma.ConclusionDisinfection of N95 masks by using the hydrogen peroxide plasma technology can be an alternative for their reuse in a shortage situation. Implications for the use of disinfection technologies of N95 masks and the safety of health personnel are discussed.Copyright © 2020 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.

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