More COVID-19 vaccines in the pipeline as US effort ramps up

  • Ellie Basham, Executive Director at Life Care Center in Kirkland, Wash., being vaccinated by Kristine Kim, a pharmacist for CVS outside the Center in Kirkland, Wash., Monday, Dec. 28, 2020. (Steve Ringman/The Seattle Times via AP)

A huge U.S. study of another COVID-19 vaccine candidate got underway Monday as states continue to roll out scarce supplies of the first shots to a nation anxiously awaiting relief from the catastrophic outbreak.