by Issam Ahmed with Sebastian Smith WASHINGTON, United States (AFP) — US President Joe Biden addressed a Covid-19 summit of world leaders Wednesday with a promise to donate a “historic” extra 500 million vaccines to countries struggling to overcome the pandemic. “This is an all-hands-on-deck crisis,” Biden said. “America will become the arsenal for vaccines as we were the arsenal for democracy in World War II.” The pledge from Biden at the summit, held virtually […]