Biden pledges '100m shots in 100 days' as he introduces health team

President-elect warns of challenges amid Covid surge while Trump ignores gravity of crisis at parallel event

Joe Biden vowed on Tuesday to ensure 100m coronavirus vaccinations would be administered to Americans during his first 100 days in the White House - as Donald Trump held a parallel event where he ignored the deepening public health crisis, instead repeating his false claims that he, not Biden, won the November election.

The Democratic president-elect on Tuesday introduced his new leadership team covering healthcare and laid out an aggressive plan to defeat the coronavirus pandemic that contrasted sharply with the Trump administration's efforts.