US President-elect Joe Biden has received his first dose of the Pfizer Covid-19 vaccine, saying he was getting the jab to show Americans it is safe to take.
Biden joins a growing number of political leaders getting the jab, including Vice-President Mike Pence and House Speaker Nancy Pelosi.
On Sunday, the roll-out began for a second vaccine, by Moderna, which was approved last week.
More than 500,000 Americans are said to have now been vaccinated.
