schools reopening

Schools have begun reopening in the U.S. with most states leaving it up to local schools to decide whether to require masks.

Parents and policy makers across the nation have been plunged anew into a debate over whether face coverings should be optional or a mandate when schools reopen

The Centers for Disease Control and Prevention updated the guidance Friday.

Children are having their noses swabbed or saliva sampled at school to test for the coronavirus in cities such as Baltimore, New York and Chicago.