Pfizer says US govt buying 200m. more doses of COVID-19 vaccine
The announcement brings the total number of the doses to be supplied to the United States to 500 million, out of which roughly 208 million doses have already been delivered.
Vials with Pfizer-BioNTech and Moderna coronavirus disease (COVID-19) vaccine labels are seen in this illustration picture taken March 19, 2021. (photo credit: REUTERS/DADO RUVIC/ILLUSTRATION/FILE PHOTO)ByREUTERS
