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Modeling the Stability of SARS-CoV-2 on Personal Protective Equipment (PPE).

ABSTRACT: We modeled the stability of SARS-CoV-2 on personal protective equipment (PPE) commonly worn in hospitals when carrying out high-risk airway procedures. Evaluated PPE included the visors and hoods of two brands of commercially available powered air purifying respirators, a disposable face shield, and Tyvek coveralls. Following an exposure to 4.3 log₁₀ plaque-forming units (PFUs) of SARS-CoV-2, all materials displayed a reduction in titer of > 4.2 log₁₀ by 72 hours postexposure, with detectable titers at 72 hours varying by material (1.1-2.3 log₁₀ PFU/mL). Our results highlight the need for proper doffing and disinfection of PPE, or disposal, to reduce the risk of SARS-CoV-2 contact or fomite transmission.

SUBMITTER: Haddow AD

PROVIDER: S-EPMC7866333 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Modeling the Stability of SARS-CoV-2 on Personal Protective Equipment (PPE).

Haddow Andrew D AD Watt Taylor R TR Bloomfield Holly A HA Fetterer David P DP Harbourt David E DE

The American journal of tropical medicine and hygiene 20201222 2

We modeled the stability of SARS-CoV-2 on personal protective equipment (PPE) commonly worn in hospitals when carrying out high-risk airway procedures. Evaluated PPE included the visors and hoods of two brands of commercially available powered air purifying respirators, a disposable face shield, and Tyvek coveralls. Following an exposure to 4.3 log10 plaque-forming units (PFUs) of SARS-CoV-2, all materials displayed a reduction in titer of > 4.2 log10 by 72 hours postexposure, with detectable ti ...[more]

PMID: 33355071

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