A recent study led by researchers at Stanford Medicine and Yale University found that wearing a surgical mask is an effective way to reduce COVID-19 cases in community settings. We spoke with principal author Ashley Styczynski, infectious disease fellow at Stanford University, about the findings.

A recent study led by researchers at Stanford Medicine and Yale University found that wearing a surgical mask is an effective way to reduce COVID-19 cases in community settings. We spoke with principal author Ashley Styczynski, infectious disease fellow at Stanford University, about the findings.

San Diego’s choice for breaking news, weather, traffic, sports, and entertainment & lifestyle from ABC 10News. 

San Diego&rsquo;s choice for breaking news, weather, traffic, sports, and entertainment &amp; lifestyle from ABC 10News.&nbsp;

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San Diego’s choice for breaking news, weather, traffic, sports, and entertainment & lifestyle from ABC 10 News. 

San Diego’s choice for breaking news, weather, traffic, sports, and entertainment &amp; lifestyle from ABC 10 News.&nbsp;

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