https://www.siliconvalley.com/2020/12/08/us-regulators-post-positive-review-of-pfizer-vaccine-data/

By MATTHEW PERRONE and LAURAN NEERGAARD | The Associated Press

WASHINGTON  — Documents released by U.S. regulators Tuesday confirmed that Pfizer and BioNTech’s COVID-19 vaccine was strongly protective against COVID-19 — offering the world’s first detailed look at the evidence behind the shots.