The U.S. is awash in vaccine supply. Its new concern: Will demand keep up?

With some U.S. states now boasting more than one dose of COVID-19 vaccine for every adult, the newest concern involves demand: Will enough Americans get shots to achieve herd immunity? https://www.cbc.ca/news/world/us-vaccine-supply-demand-1.5989684?cmp=rss #news/world