NEW YORK, NEW YORK - OCTOBER 03: In this photo illustration, a medical syringe and vials of the Pfizer US pharmaceutical corporation and BioNTech German biotechnology 2021 company logos are seen on October 03, 2021 in New York City. Pfizer and BioNTech announced its conclude phase 3 study of COVID-19 vaccine candidate with 95% primary efficacy analysis, as the media reported on 18 November 2020. (Photo Illustration by Cindy Ord/Getty Images for Pfizer/BioNTech)

(AP) – U.S. regulators have authorized a COVID-19 vaccine booster for healthy children ages 5 to 11. Everyone 12 and older already was supposed to get one booster dose for the best protection against the newest variants of the coronavirus. Some people, including those 50 and older, can choose a second booster. The Food and Drug Administration’s action Tuesday now opens a third Pfizer shot to elementary-age kids, too — at least five months after their last dose. There is one more hurdle. The Centers for Disease Control and Prevention must decide whether to formally recommend the booster for this age group.