US vaccinations ramp up as 2nd COVID-19 shot nears

Materials handlers Mark Robinson, left, and Pfc. Saurav Shrestha, right, wheel a box of the first shipment of the Pfizer vaccine for COVID-19 from a loading dock to a freezer, Tuesday, Dec. 15, 2020, shortly after it arrived at Madigan Army Medical Center at Joint Base Lewis-McChord in Washington state, south of Seattle. The hospital plans to start the first round of vaccinations on Wednesday. (AP Photo/Ted S. Warren)

David Cheng, director of inpatient pharmacy, holds the Pfizer-BioNTech COVID-19 vaccine at Kaiser Permanente Los Angeles Medical Center in Los Angeles, Monday, Dec. 14, 2020. (AP Photo/Jae C. Hong)

Nurse Shannon Lesch prepares to administer one of Illinois' first five Pfizer-BioNTech COVID-19 vaccinations outside of Chicago to chief of Emergency Services Dr. Victor Chan, 35, at OSF Saint Francis Medical Center in downstate Peoria, Ill., Tuesday morning, Dec. 15, 2020. (Ashlee Rezin Garcia/Chicago Sun-Times via AP)

WASHINGTON — Hundreds more hospitals around the country began dispensing COVID-19 shots to their workers in a rapid expansion of the U.S. vaccination drive Tuesday, while a second vaccine moved to the cusp of government authorization.