Walgreens allowing people awaiting second doses of Pfizer vaccine to reschedule appointments

Members of the Walgreens vaccination team vaccinating a staff member, organizing paperwork and preparing injections of the COVID-19 vaccine in New York in Jan. 11, 2021. Following complaints from customers and the Centers for Disease Control and Prevention, the pharmacy chain will start scheduling Pfizer vaccine doses three weeks apart, as recommended by the CDC. (Christopher Occhicone/The New York Times)