Evaluating the virucidal efficacy of hydrogen peroxide vapour

Sagar M Goyal, Y. Chander, S. Yezli, J. A. Otter

Research output: Contribution to journalArticle

41 Scopus citations

Abstract

Background: Surface contamination has been implicated in the transmission of certain viruses, and surface disinfection can be an effective measure to interrupt the spread of these agents. Aim: To evaluate the in-vitro efficacy of hydrogen peroxide vapour (HPV), a vapour-phase disinfection method, for the inactivation of a number of structurally distinct viruses of importance in the healthcare, veterinary and public sectors. The viruses studied were: feline calicivirus (FCV, a norovirus surrogate); human adenovirus type 1; transmissible gastroenteritis coronavirus of pigs (TGEV, a severe acute respiratory syndrome coronavirus [SARS-CoV] surrogate); avian influenza virus (AIV); and swine influenza virus (SwIV). Methods: The viruses were dried on stainless steel discs in 20- or 40-μL aliquots and exposed to HPV produced by a Clarus L generator (Bioquell, Horsham, PA, USA) in a 0.2-m3 environmental chamber. Three vaporized volumes of hydrogen peroxide were tested in triplicate for each virus: 25, 27 and 33mL. Findings: No viable viruses were identified after HPV exposure at any of the vaporized volumes tested. HPV was virucidal (>4-log reduction) against FCV, adenovirus, TGEV and AIV at the lowest vaporized volume tested (25. mL). For SwIV, due to low virus titre on the control discs, >3.8-log reduction was shown for the 25-mL vaporized volume and >4-log reduction was shown for the 27-mL and 33-mL vaporized volumes. Conclusion: HPV was virucidal for structurally distinct viruses dried on surfaces, suggesting that HPV can be considered for the disinfection of virus-contaminated surfaces.

Original languageEnglish (US)
Pages (from-to)255-259
Number of pages5
JournalJournal of Hospital Infection
Volume86
Issue number4
DOIs
StatePublished - Apr 2014

Keywords

  • Adenovirus
  • Decontamination
  • Disinfection
  • Feline calicivirus
  • HPV
  • Hydrogen peroxide vapour
  • Influenza virus
  • Norovirus
  • SARS
  • Transmissible gastroenteritis virus

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