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

Robert Luckey, COVID ICU Nurse, receives the hospital’s first dose of the Pfizer-BioNTech vaccine for COVID-19 at Memorial Hermann Hospital in the Texas Medical Center Tuesday, Dec. 15, 2020 in Houston. Front line workers at Memorial Hermann were some of the first to receive the recently approved vaccine. The Pfizer vaccine was almost 95 percent effective at preventing patients from contracting COVID-19 and caused no major side effects in a trial of nearly 44,000 people. (Brett Coomer/Houston Chronicle 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.

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