Health officials track safety as COVID-19 vaccines roll out

by LAURAN NEERGAARD AP Medical Writer

Thu, December 17th 2020, 1:04 AM UTC

Catalina Gonzalez-Marques, an emergency medical physician, receives the Pfizer-BioNTech coronavirus vaccine at Brigham and Women's Hospital, Wednesday, Dec. 16, 2020, in Boston. (Brian Snyder/Pool via AP)

A droplet falls from a syringe after a health care worker was injected with the Pfizer-BioNTech COVID-19 vaccine at Women & Infants Hospital in Providence, R.I., Tuesday, Dec. 15, 2020. (AP Photo/David Goldman)

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Catalina Gonzalez-Marques, an emergency medical physician, receives the Pfizer-BioNTech coronavirus vaccine at Brigham and Women's Hospital, Wednesday, Dec. 16, 2020, in Boston. (Brian Snyder/Pool via AP)

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