Scientific article
Letter
OA Policy
English

Use of medical face masks versus particulate respirators as a component of personal protective equipment for health care workers in the context of the COVID-19 pandemic

Errata
  • An amendment to this paper has been published and can be accessed via the original article. It concerns the name of the collaboration listed both the authorship list and the Competing Interests section.
  • DOI : 10.1186/s13756-020-00810-w
  • PMID : 32900385
ContributorsConly, Johnorcid; Seto, W H; Pittet, Didier; Holmes, Alison; Chu, May; Hunter, Paul R; WHO Infection Prevention and Control Research and Development Expert Group for COVID-19
Published inAntimicrobial resistance and infection control, vol. 9, no. 1, 126
Publication date2020-08-06
First online date2020-08-06
Abstract

Currently available evidence supports that the predominant route of human-to-human transmission of the SARS-CoV-2 is through respiratory droplets and/or contact routes. The report by the World Health Organization (WHO) Joint Mission on Coronavirus Disease 2019 (COVID-19) in China supports person-to-person droplet and fomite transmission during close unprotected contact with the vast majority of the investigated infection clusters occurring within families, with a household secondary attack rate varying between 3 and 10%, a finding that is not consistent with airborne transmission. The reproduction number (R0) for the SARS-CoV-2 is estimated to be between 2.2-2.7, compatible with other respiratory viruses associated with a droplet/contact mode of transmission and very different than an airborne virus like measles with a R0widely cited to be between 12 and 18. Based on the scientific evidence accumulated to date, our view is that SARS-CoV-2 is not spread by the airborne route  to  any significant extent and the use of particulate respirators offers no advantage over medical masks as a component of personal protective equipment for the routine care of patients with COVID-19 in the health care setting. Moreover, prolonged use of particulate respirators may result in unintended harms. In conjunction with appropriate hand hygiene, personal protective equipment (PPE) used by health care workers caring for patients with COVID-19 must be used with attention to detail and precision of execution to prevent lapses in adherence and active failures in the donning and doffing of the PPE.

Keywords
  • Airborne
  • COVID-19
  • Contact
  • Droplet
  • Infection prevention
  • Medical mask
  • N95 respirator
  • SARS-CoV-2
  • Transmission
  • Betacoronavirus / physiology
  • COVID-19
  • China / epidemiology
  • Coronavirus Infections / epidemiology
  • Coronavirus Infections / prevention & control
  • Coronavirus Infections / transmission
  • Coronavirus Infections / virology
  • Health Personnel / statistics & numerical data
  • Humans
  • Infection Control / instrumentation
  • Infection Control / methods
  • Masks
  • Pandemics / prevention & control
  • Personal Protective Equipment
  • Pneumonia, Viral / epidemiology
  • Pneumonia, Viral / prevention & control
  • Pneumonia, Viral / transmission
  • Pneumonia, Viral / virology
  • SARS-CoV-2
  • Ventilators, Mechanical
Citation (ISO format)
CONLY, John et al. Use of medical face masks versus particulate respirators as a component of personal protective equipment for health care workers in the context of the COVID-19 pandemic. In: Antimicrobial resistance and infection control, 2020, vol. 9, n° 1, p. 126. doi: 10.1186/s13756-020-00779-6
Main files (2)
Article (Published version) - version incluant les corrections
Article (Published version) - version initialement publiée
Updates (1)
Corrigendum
Identifiers
Journal ISSN2047-2994
202views
151downloads

Technical informations

Creation16/11/2021 10:25:00
First validation16/11/2021 10:25:00
Update16/03/2023 01:49:32
Status update16/03/2023 01:49:31
Last indexation31/10/2024 23:48:22
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack