Signs urging everyone to mask up have largely disappeared from places like grocery stores and schools in the third year of the Covid-19 pandemic.But they remain in many medical offices, and a study published Monday says they might still be a good idea.Even after the expiration of the US public health emergency declaration and with many Americans moving away from pandemic precautions, masks continue to offer some protection, reducing your risk of catching Covid-19 in a community setting like in a close doctor and patient interaction, according to the study, which reviewed the latest science on the protective quality of masks.
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