Facial Masking for Covid-19 Potential for“Variolation”as We Await a Vaccine

One important reason for population-wide facial masking became apparent in March, when reports started to circulate describing the high rates of SARS-CoV-2 viral shedding from the noses and mouths of patients who were presymptomatic or asymptomatic shedding rates equivalent to those among symptomatic patients.

Facial Masking for Covid-19 Potential for “Variolation” as We Await a Vaccine
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