RESUMO
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.
Assuntos
COVID-19/transmissão , Luvas Protetoras/virologia , Viabilidade Microbiana , Equipamento de Proteção Individual/virologia , Dispositivos de Proteção Respiratória/virologia , SARS-CoV-2/fisiologia , COVID-19/virologia , Meia-Vida , Humanos , Transmissão de Doença Infecciosa do Paciente para o ProfissionalRESUMO
We modeled the stability of SARS-CoV-2 on apples, tomatoes, and jalapeño peppers at two temperatures following a low-dose aerosol exposure designed to simulate an airborne transmission event involving droplet nuclei. Infectious virus was not recovered postexposure.