HealthFDA backs Pfizer COVID-19 boosters for seniors, high-riskBy MATTHEW PERRONE, LAURAN NEERGAARD and MIKE STOBBE (Associated Press)Sept. 23, 2021 12:02 a.m.📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up