COVID vaccination success in U.S. and other wealthy countries contrasts with shortages elsewhere as G-20 promises to step up
May 21, 2021 at 10:36 AM EDT
Growing optimism that the coronavirus-borne illness COVID-19 is on the retreat in the U.S. and other wealthy countries was tempered Friday by continuing high case numbers in many parts of Asia, where some countries are running low on vaccines and unsure when fresh supplies will arrive.