States in the U.S. have started to administer Pfizer-BioNTech COVID-19 vaccines to frontline medical workers. According to the Centers for Disease Control and Prevention, more than 2.9 million vaccines have been allocated to U.S. states.
A healthcare worker receives the Pfizer-BioNTech COVID-19 vaccine at the Michigan Medicine facility in Ann Arbor, Michigan, U.S., December 16, 2020. /Getty
A healthcare worker receives the Pfizer-BioNTech COVID-19 vaccine at the Michigan Medicine facility in Ann Arbor, Michigan, U.S., December 16, 2020. /Getty
Healthcare workers get the Pfizer-BioNTech COVID-19 vaccination at the Legacy Emanuel Medical Center in Portland, Oregon, December 16, 2020. /Getty
Healthcare workers get the Pfizer-BioNTech COVID-19 vaccination at the Legacy Emanuel Medical Center in Portland, Oregon, December 16, 2020. /Getty
A frontline medical worker takes a selfie while receiving the Pfizer-BioNTech COVID-19 vaccine at the Virginia Hospital Center in Arlington, Virginia, December 16, 2020. /Getty
A frontline medical worker takes a selfie while receiving the Pfizer-BioNTech COVID-19 vaccine at the Virginia Hospital Center in Arlington, Virginia, December 16, 2020. /Getty
A sign saying "You Got Spiked" was written around the spot where a doctor at the Portland Veterans Affairs Medical Center received his COVID-19 vaccine in Portland, Oregon, December 16, 2020. /Getty
A sign saying "You Got Spiked" was written around the spot where a doctor at the Portland Veterans Affairs Medical Center received his COVID-19 vaccine in Portland, Oregon, December 16, 2020. /Getty
A nurse celebrates after receiving her first dose of the COVID-19 vaccine at Ronald Reagan UCLA Medical Center in Westwood, California, December 16, 2020. /Getty
A nurse celebrates after receiving her first dose of the COVID-19 vaccine at Ronald Reagan UCLA Medical Center in Westwood, California, December 16, 2020. /Getty
A sign listing side effects of the Pfizer-BioNTech Covid-19 vaccine at Perry Memorial Hospital in Princeton, Illinois, December 16, 2020. /Getty
A sign listing side effects of the Pfizer-BioNTech Covid-19 vaccine at Perry Memorial Hospital in Princeton, Illinois, December 16, 2020. /Getty