By Frederick L. Greene, MD
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The recent emergence of a deadly mutated strain of coronavirus (COVID-19) and its spread across the world has heightened interest in the role of the surgical mask as one possible barrier to a potential pandemic. The media has touted the use of surgical masks and the types of masks that should be worn as a barrier to airborne viral spread. The need and desire of entire urban populations and travelers for facial barriers have literally created a worldwide shortage of