FDA authorizes Pfizer and Moderna Covid boosters for all US adults

US regulators on Friday opened up Covid-19 booster shots to all US adults, expanding the government’s campaign to shore up protection and get ahead of rising coronavirus cases that may worsen with the holidays.

Pfizer and Moderna announced the Food and Drug Administration’s (FDA) decision after at least 10 states already had started offering boosters to all adults.

The latest action simplifies what until now has been a confusing list of who’s eligible by allowing anyone 18 or older to choose either company’s booster six months after their last dose...