Surgical and cotton masks are ineffective in blocking SARS–CoV-2

in #covid19 • 5 years ago

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Both surgical and cotton masks seem to be ineffective in preventing the dissemination of SARS–CoV-2 from the coughs of patients with COVID-19 to the environment and external mask surface.

Source:
Effectiveness of Surgical and Cotton Masks in Blocking SARS–CoV-2: A Controlled Comparison in 4 Patients

#coronavirus #facemask #contagion #cough
5 years ago in #covid19 by
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