U.S. pledge of 500M doses 'a small piece of the puzzle' in global vaccination race: expert

Health officials and experts around the world on Thursday welcomed a U.S. plan to donate 500 million more COVID-19 vaccines to developing countries, but the celebrations came with hesitation.

source https://www.cbc.ca/news/world/us-biden-pfizer-doses-1.6060260?cmp=rss