#Breaking144 – A 4th dose of #Covid19 vaccine will be needed, Pfizer’s CEO says, but the company is working on a shot to handle all variants

(CNN) — To help fend off another wave of #Covid19, people will need a fourth dose of vaccine, Pfizer CEO Albert Bourla told CBS on Sunday. “Many …

A 4th dose of Covid-19 vaccine will be needed, Pfizer’s CEO says, but the company is working on a shot to handle all variants