COVID-19 Booster Shots Will Roll Out In September In The U.S. : Coronavirus Updates : NPR

A health care worker fills a syringe with the Pfizer COVID-19 vaccine in July in New York. U.S. officials are recommending that Americans get COVID-19 booster shots to shore up their protection amid the surging delta variant and evidence the vaccines’ effectiveness is falling.   Mary Altaffer/AP hide caption toggle caption   Mary Altaffer/AP  …