Experts say cloth face coverings can help stop the spread of COVID-19, and new research suggests masks with two layers of fabric are more effective than those with a single layer. CBS News' Naomi Ruchim has details.
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Experts say cloth face coverings can help stop the spread of COVID-19, and new research suggests masks with two layers of fabric are more effective than those with a single layer. CBS News' Naomi Ruchim has details.
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