The U.S. has achieved a milestone of administering more than 100 million Covid-19 shots, with 66 million people having received at least a first dose of the vaccine.
About 2.3 million doses a day are being given in the U.S., a figure that is likely to rise significantly in coming weeks with the rollout of Johnson & Johnson’s one-dose vaccine. President Joe Biden has pledged there will be enough doses by the end of May for any American adult who wants to be immunized, an estimate that matches a Bloomberg analysis of drugmakers’ delivery timetables.