U.S. expands Pfizer boosters, opens extra dose to age 16
(AP) - U.S. health authorities again expanded the nation's booster campaign Thursday, opening extra doses of Pfizer's COVID-19 vaccine to several million 16- and 17-year-olds. The…
(AP) - U.S. health authorities again expanded the nation's booster campaign Thursday, opening extra doses of Pfizer's COVID-19 vaccine to several million 16- and 17-year-olds. The…