An Amherst pediatrician, concerned over the critical shortage of surgical masks now worn by many people to help slow the spread of COVID-19, has taken matters into her own hands. Dr. Martina Puzanov ...
Do masks work? And if so, should you reach for an N95, a surgical mask, a cloth mask or a gaiter? Over the past year and a half, researchers have produced a lot of laboratory, model-based and ...
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