Biden vows enough vaccine for all US adults by end of May

(AP) — President Joe Biden says the U.S. expects to take delivery of enough coronavirus vaccine for all adults by the end of May — two months earlier than anticipated.

He’s also pushing states to get at least one shot into the arms of teachers by the end of March to hasten school reopenings.

Biden has also announced that drugmaker Merck will help produce rival Johnson & Johnson’s newly approved one-shot vaccine. Despite the stepped-up pace of vaccine production, the work of inoculating Americans could extend well into the summer. It depends on both the government’s capacity to deliver doses and Americans’ willingness to roll up their sleeves.