🚨BREAKING: Great news! @Pfizer says an early analysis of its #coronavirus vaccine trial by independent experts found the vaccine to be >90% effective in preventing #COVID19 in previously uninfected healthy people. No serious safety concerns were observed.https://t.co/jy4pHVkQhb
— Dena Grayson, MD, PhD (@DrDenaGrayson) November 9, 2020
