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How Do I Know When I Need to Wear a Mask?

Author: Chantel Sloan, PhD, Public Health, BYU
Respiratory infectious disease epidemiology

When should I wear a mask?

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Other Considerations:
Does anyone around me have a chronic health condition, or are over 65 years old?
Be more careful to wear a mask.

Has everyone around me already been infected with COVID-19, or were they vaccinated at least 3 weeks ago?
Still practice caution, you can be reinfected with COVID-19.