The hunt for herd immunity: Suddenly, the U.S. seems in better shape on COVID-19

For the last year, stories about hard-hit American communities clobbered by COVID-19 served as a cautionary tale. But things are improving in many parts of the country, with herd immunity inching closer. https://www.cbc.ca/news/world/us-seeing-herd-immunity-over-the-horizon-1.5921179?cmp=rss #news/world