Biden in vow over enough vaccines for all US adults by end of May

Joe Biden (AP)

US president Joe Biden said he expects to take delivery of enough coronavirus vaccines for all adults by the end of May – two months earlier than anticipated – and he pushed states to get at least one dose into the arms of teachers by the end of March.

Mr Biden also announced that drugmaker Merck will help produce rival Johnson & Johnson’s (J&J) newly approved one-shot vaccine, likening the partnership between the two drug companies to the spirit of national cooperation during the Second World War.