Unmasked: Experts explain necessary respiratory protection for COVID-19

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Unmasked: Experts explain necessary respiratory protection for COVID-19

Droplet or aerosol infection spread? Surgical mask or respirator? Asymptomatic transmission or symptomatic only? These are the defining questions surrounding the person-to-person transmission of the novel coronavirus disease COVID-19 that have yet to be answered—or answered sufficiently—for US experts monitoring the disease. And the answers hold the key to […]

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