FDA authorizes Pfizer-BioNTech coronavirus vaccine booster shots for 16- and 17-year-olds amid omicron threat

Federal regulators Thursday authorized booster shots of Pfizer-BioNTech’s coronavirus vaccine for 16- and 17-year-olds, a step that officials said would bolster protection against delta, the variant behind surging infections in parts of the United States, and could help tame the emerging omicron version.