https://abs.twimg.com/emoji/v2/... draggable="false" alt="🚨" title="Police cars revolving light" aria-label="Emoji: Police cars revolving light">Extremely timely mask https://abs.twimg.com/emoji/v2/... draggable="false" alt="😷" title="Face with medical mask" aria-label="Emoji: Face with medical mask"> studyhttps://abs.twimg.com/emoji/v2/... draggable="false" alt="🚨" title="Police cars revolving light" aria-label="Emoji: Police cars revolving light">

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

https://abs.twimg.com/emoji/v2/... draggable="false" alt="💥" title="Collision symbol" aria-label="Emoji: Collision symbol">Neither surgical nor cotton masks effectively filtered SARS–CoV-2 during coughs by infected patientshttps://abs.twimg.com/emoji/v2/... draggable="false" alt="💥" title="Collision symbol" aria-label="Emoji: Collision symbol">

https://bit.ly/2JLFoc1 ">https://bit.ly/2JLFoc1&q...

2/2

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 https://abs.twimg.com/emoji/v2/... draggable="false" alt="😷" title="Face with medical mask" aria-label="Emoji: Face with medical mask"> emphasizing importance ohttps://abs.twimg.com/emoji/v2/... draggable="false" alt="👏" title="Clapping hands sign" aria-label="Emoji: Clapping hands sign"> https://abs.twimg.com/emoji/v2/... draggable="false" alt="🧼" title="Soap" aria-label="Emoji: Soap"> when doffing