December 31, 2021 (Reuters) – Sinovac’s two-dose COVID-19 vaccine followed by a booster Pfizer-BioNTech shot.
Recent lab data suggests the Pfizer antiviral Covid pill retains its effectiveness against the fast.
December 8, 2021 (Reuters) – BioNTech and Pfizer (PFE.N) said on Wednesday a three-shot course of their.
Mexico City, (August 30, 2021).- In the early hours of Monday, August 30, a new.
MARKET WATCH Federal health officials said Wednesday that a third dose of the COVID-19 shots.