Nation More states open vaccines to all, end restrictions; white students more likely to be inside classrooms: Live COVID-19 updates March 24, 2021 Elinor Aspegren and Adrianna Rodriguez, USA TODAY Comments Off on More states open vaccines to all, end restrictions; white students more likely to be inside classrooms: Live COVID-19 updates Experts are warning of a fourth surge of coronavirus cases as new variants spread rapidly through the U.S. Latest COVID-19 news.