Scientists studying the SARS-CoV-2 coronavirus — which causes COVID-19 — believe they’ve discovered why face masks might help limit transmission of the virus.
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It is never too late to start
Scientists studying the SARS-CoV-2 coronavirus — which causes COVID-19 — believe they’ve discovered why face masks might help limit transmission of the virus.
…
Scientists studying the SARS-CoV-2 coronavirus — which causes COVID-19 — believe they’ve discovered why face masks might help limit transmission of the virus.
…