Salt Lake County says the face mask mandate is working

Editor’s note: The Salt Lake Tribune is providing free access to critical stories about the coronavirus. Sign up for our Top Stories newsletter, sent to your inbox every weekday morning. To support journalism like this, please donate or become a subscriber.Salt Lake County leaders are crediting their face mask mandate with helping tamp down the coronavirus in the county, in contrast with swelling case counts in other parts of the state.“We know that COVID-19 is a