A comparison of persistence of SARS-CoV-2 variants on stainless steel

Thomas Pottage*, Isobel Garratt, O. Onianwa, A. Spencer, Susan Paton, Neville Verlander, William Dunning, Allan Bennett

*Corresponding author for this work

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The survival of newer variants of SARS-CoV-2 on a representative surface has been compared to the established UK circulating isolate to determine whether enhanced environmental stability could play a part in their increased transmissibility. Stainless steel coupons were inoculated with liquid cultures of the three variants, with coupons recovered over seven days and processed for recoverable viable virus using plaque assay. After drying, there was no significant difference in inactivation rates between variants, indicating that there is no increased environmental persistence from the new variants.

Original languageEnglish
Pages (from-to)163-166
Number of pages4
JournalJournal of Hospital Infection
Early online date29 Jun 2021
Publication statusPublished - Aug 2021

Bibliographical note

Funding Information:
This work was funded by MRC award MC_PC_19064 ‘COVID-19: Understanding environmental and airborne routes of transmission’ and PROTECT (National Core Study on Transmission and the Environment).

Open Access: This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Publisher Copyright: Crown Copyright © 2021 Published by Elsevier Ltd on behalf of The Healthcare Infection Society.

Citation: T. Pottage, I. Garratt, O. Onianwa, A. Spencer, S. Paton, N.Q. Verlander, J. Dunning, A. Bennett, A comparison of persistence of SARS-CoV-2 variants on stainless steel, Journal of Hospital Infection, Volume 114, 2021, Pages 163-166,
ISSN 0195-6701.

DOI: https://doi.org/10.1016/j.jhin.2021.05.015.


  • COVID-19
  • Environmental persistence
  • SARS-CoV-2
  • Stainless steel
  • Virology


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