A medical worker prepares a vial of the Pfizer coronavirus vaccine at Clalit Health Service's vaccination center in the Cinema City complex in Jerusalem, Wednesday, Sept. 22, 2021. Israel is pressing ahead with its aggressive campaign of offering coronavirus boosters to almost anyone over 12 and says its approach was further vindicated by a U.S. decision to give the shots to older patients or those at higher risk. (AP Photo/Maya Alleruzzo)