Recent studies show that people with COVID-19 can have no symptoms or mild symptoms and still spread the virus. We are learning more and that’s why we have this new recommendation.
Face coverings decrease how many droplets we release when we speak, cough, or sneeze. Whenever we forcefully exhale, we release droplets.
Face coverings are intended to protect others.
https://multco.us/novel-coronavirus-covid-19/face-coverings-masks-and-covid-19-what-you-should-know