Of the 3.9 million Johnson & Johnson doses that began shipping out at the beginning of last week, about 630,000 had been administered as of Thursday, according to Centers for Disease Control and Prevention data. Biden administration officials say there is a data lag, just as their predecessors insisted in December. The May target mainly results from scaled-up manufacturing, as well as the authorization of the Johnson & Johnson vaccine, according to current and former officials. - - -The Biden administration has made vaccine administration a priority, saying their predecessors did little more than ship the product to states. A Johnson & Johnson spokesman declined to comment.
