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If you're counting on a cloth mask to protect you from COVID-19, you may need to re-think that strategy, a new study shows. Researchers found that cloth face masks do little to fend off tiny airborne ...

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protonmail.com To evaluate the effectiveness of the Centers for Disease Control and Prevention (CDC) recommended one- and two-layer cloth face covering against a three-ply surgical mask, we challenged ...

We also tested the virucidal effects of disinfectants by adding 15 μL of SARS-CoV-2 culture (∼7·8 log unit of TCID 50 per mL) to 135 μL of various disinfectants at working concentration (appendix p 1) ...