More COVID-19 vaccines in the pipeline as US effort ramps up
Pharmacist Nadine M. Mackey, right, and registered nurse Gloria Campbell, center, react after Campbell received a COVID-19 vaccination at PowerBack Rehabilitation, in Phoenixville, Pa., Monday, Dec. 28, 2020. (Jose F. Moreno/The Philadelphia Inquirer via AP)

Pharmacist Nadine M. Mackey, right, and registered nurse Gloria Campbell, center, react after Campbell received a COVID-19 vaccination at PowerBack Rehabilitation, in Phoenixville, Pa., Monday, Dec. 28, 2020. (Jose F. Moreno/The Philadelphia Inquirer via AP)

Dec. 28, 2020 02:17 PM EST
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)

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)

Dec. 28, 2020 03:57 PM EST