A more contagious variant of the coronavirus is spreading across the United States. But vaccines must work against that.
US Coronavirus: Teachers’ unions are cautious about CDC’s new guidelines on social distance in schools
:strip_exif(true):strip_icc(true):no_upscale(true):quality(65)/d1vhqlrjc8h82r.cloudfront.net/03-20-2021/t_fa06d56d34a74082b2b7a9efea125d04_name_image.jpg "Dr. Anthony Fauci advises Governor Whitmer about lifting COVID restrictions in Michigan")
