U.S. sees record one-day death toll and experts worry that new variant may make activities like plane travel more risky
January 13, 2021 at 10:31 AM EST
The U.S. set another grim milestone in the coronavirus pandemic on Tuesday, when more than 4,400 COVID-19 patients died, the most in a single day since the start of the outbreak, and experts said that with cases continuing to accelerate, the worst is still to come.
