Mark Thompson discusses a new study that proves coronavirus transmission declined when people wore face masks indoors.See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.

Mark Thompson discusses a new study that proves coronavirus transmission declined when people wore face masks indoors. See omnystudio.com/listener for privacy information.

Mark Thompson discusses a new study that proves coronavirus transmission declined when people wore face masks indoors.See <a href="https://omnystudio.com/listener" rel="noopener noreferrer">omnystudio.com/listener</a> for privacy information.

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Mark Thompson: Studies Are In - Masks Work

Mark Thompson: Studies Are In - Masks Work