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Conway Morris A, Sharrocks K, Bousfield R, et al. The removal of airborne SARS-CoV-2 and other microbial bioaerosols by air filtration on COVID-19 surge units. Clin Infect Dis. 2021;doi: 10.1093/cid/ciab933.
Conway Morris, A., Sharrocks, K., Bousfield, R., Kermack, L., Maes, M., Higginson, E., Forrest, S., Pereira-Dias, J., Cormie, C., Old, T., Brooks, S., Hamed, I., Koenig, A., Turner, A., White, P., Floto, R. A., Dougan, G., Gkrania-Klotsas, E., Gouliouris, T., Baker, S., & Navapurkar, V. (2021). The removal of airborne SARS-CoV-2 and other microbial bioaerosols by air filtration on COVID-19 surge units. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, . https://doi.org/10.1093/cid/ciab933
Conway Morris, Andrew, et al. "The removal of airborne SARS-CoV-2 and other microbial bioaerosols by air filtration on COVID-19 surge units." Clinical infectious diseases : an official publication of the Infectious Diseases Society of America vol. (2021). doi: https://doi.org/10.1093/cid/ciab933
Conway Morris A, Sharrocks K, Bousfield R, Kermack L, Maes M, Higginson E, Forrest S, Pereira-Dias J, Cormie C, Old T, Brooks S, Hamed I, Koenig A, Turner A, White P, Floto RA, Dougan G, Gkrania-Klotsas E, Gouliouris T, Baker S, Navapurkar V. The removal of airborne SARS-CoV-2 and other microbial bioaerosols by air filtration on COVID-19 surge units. Clin Infect Dis. 2021 Oct 30; doi: 10.1093/cid/ciab933. Epub 2021 Oct 30. PMID: 34718446.
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Clin Infect Dis. 2021 Oct 30; doi: 10.1093/cid/ciab933. Epub 2021 Oct 30.

The removal of airborne SARS-CoV-2 and other microbial bioaerosols by air filtration on COVID-19 surge units.

Clinical infectious diseases : an official publication of the Infectious Diseases Society of America

Andrew Conway Morris, Katherine Sharrocks, Rachel Bousfield, Leanne Kermack, Mailis Maes, Ellen Higginson, Sally Forrest, Joana Pereira-Dias, Claire Cormie, Tim Old, Sophie Brooks, Islam Hamed, Alicia Koenig, Andrew Turner, Paul White, R Andres Floto, Gordon Dougan, Effrossyni Gkrania-Klotsas, Theodore Gouliouris, Stephen Baker, Vilas Navapurkar

Affiliations

  1. The John Farman ICU, Cambridge University Hospitals NHS Foundation Trust, Hills Rd, Cambridge CB2 0QQ, UK.
  2. University Division of Anaesthesia, Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Cambridge, UK.
  3. Department of Infectious Diseases, Cambridge University Hospitals NHS Foundation Trust, Hills Rd, Cambridge CB2 0QQ, UK.
  4. Clinical Microbiology Laboratory, Cambridge University Hospitals NHS Foundation Trust, Hills Rd, Cambridge CB2 0QQ, UK.
  5. Cambridge Institute of Therapeutic Immunology and Infectious Disease, Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Cambridge, UK.
  6. Department of Clinical Engineering, Cambridge University Hospitals NHS Foundation Trust, Cambridge UK.
  7. Medical Technology Research Centre and School of Medicine, Anglia Ruskin University, Chelmsford, UK.
  8. Molecular Immunity Unit, University of Cambridge Department of Medicine, MRC-Laboratory of Molecular Biology, Cambridge, UK.
  9. Cambridge Centre for Lung Infection, Royal Papworth Hospital, Cambridge UK.

PMID: 34718446 DOI: 10.1093/cid/ciab933

Abstract

Airborne SARS-CoV-2 was detected in a COVID-19 ward before activation of portable HEPA-air filtration, but not during the week of filter operation; SARS-CoV-2 was again detected when the filter was off. Airborne SARS-CoV-2 was infrequently detected in a COVID-19 ICU. Filtration significantly reduced other microbial bioaerosols in both settings.

© The Author(s) 2021. Published by Oxford University Press for the Infectious Diseases Society of America.

Keywords: COVID-19; SARS-CoV-2; air filtration; airborne pathogens; nosocomial infection

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