Should You Be Wearing a Mask?

The CDC could soon be changing its guidelines on whether the American public should be wearing masks to combat the spread of COVID-19. What does the data say about mask usage? And how do we calculate the answer for ourselves?

Guest: Aaron E. Carroll, professor of pediatrics at Indiana University School of Medicine. He blogs at a website called The Incidental Economist. He’ll also answer your coronavirus questions on YouTube. His channel is Healthcare Triage.

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