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Extremely timely mask 
studyEffectiveness of Surgical and Cotton Masks in Blocking SARSâCoV-2: A Controlled Comparison in 4 Patients
Neither surgical nor cotton masks effectively filtered SARSâCoV-2 during coughs by infected patientshttps://bit.ly/2JLFoc1
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Suggests neither surgical nor cloth masks worn by infected individuals will be effective in preventing viral spread during coughing.
This does not inform us about asymptomatic spread
Authors found virus outside > inside of emphasizing importance o
when doffing
Suggests neither surgical nor cloth masks worn by infected individuals will be effective in preventing viral spread during coughing.
This does not inform us about asymptomatic spread
Authors found virus outside > inside of
emphasizing importance o when doffing
