coronavirus vaccines through the World Health Organization's COVAX scheme for distributing doses to poorer countries, the US global coordinator on Covid Gayle Smith said at a press conference.US President Joe Biden had announced that his administration will send by the end of June a total of 20 million doses of the Pfizer Inc/BioNTech SE, Moderna Inc and Johnson & Johnson vaccines, on top of 60 million AstraZeneca Plc doses he had already planned to give to other countries."As President Biden announced, we'll share 20 mn vaccine doses in addition to 60 mn AstraZeneca doses announced earlier, that means we'd share 80 mn doses making us largest vaccine sharer so far," Smith added.Decision on where doses could be sent yet to be taken"The.