US president-elect Joe Biden is warning it may take years for all Americans to be vaccinated against COVID-19 at the current rate of the rollout.
- US President Donald Trump had promised 20 million Americans would be vaccinated by the end of the year
- President-elect Joe Biden says only about 2 million Americans have received the shot
- Vice-president-elect Kamala Harris received a COVID-19 shot on live television
Speaking from his home state of Delaware, Mr Biden said roughly 2 million people had been…