The Centers for Disease Control and Prevention (CDC) has changed its guidelines about masks and respirators a number of times over the past two years and gave its most recent update on January 14, ...
The omicron variant of COVID-19 has health authorities encouraging folks to upgrade from cloth masks to N95s, KN95s or at the very least, surgical masks. Dr. Elizabeth Matsui, an allergist, ...
Single-layer cloth masks may not provide adequate protection against the very infectious omicron variant of COVID-19, according to a recent Wall Street Journal report. Many infectious disease experts ...
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