Christians wearing face masks attend while maintaining social distancing during a Christmas service at the Yoido Full Gospel Church in Seoul, South Korea, Saturday, Dec. 25, 2021. In South Korea, the toughest social distancing rules remained in place, requiring churches to accept a limited number of worshippers ??" 70% of their seating capacity ??" and attendees had to be fully vaccinated. (AP Photo/Lee Jin-man), APTOPIX