US regulators give full approval to Pfizer COVID-19 vaccine

In this March 2 file photo, pharmacy technician Hollie Maloney loads a syringe with Pfizer's COVID-19 vaccine at the Portland Expo in Portland, Maine. (AP Photo/Robert F. Bukaty, File)

WASHINGTON — The U.S. gave full approval to Pfizer’s COVID-19 vaccine Monday, potentially boosting public confidence in the shots and instantly opening the way for more universities, companies and local governments to make vaccinations mandatory.