Joe Biden hails US vaccination programme after 50m-dose milestone

President Joe Biden speaks during an event to commemorate the 50 millionth Covid-19 shot (Evan Vucci/AP)

Joe Biden has welcomed the administration of the 50 millionth dose of Covid-19 vaccine since his swearing-in.

The moment came days after the US reached the devastating milestone of 500,000 coronavirus deaths and ahead of a meeting with the nation’s governors on plans to speed the distribution of vaccines even further.