astra-zeneca
The high success rate from one part of the study has come under scrutiny this week. Here's what we know.
AstraZeneca's Covid-19 jab has 70% efficacy. Here's how the figure was calculated and why it might not be the same in the real world.
The UK government has already ordered 100m doses of the vaccine, developed with AstraZeneca.
Scientists found one dosing regimen may actually provide 90% protection against Covid-19.
The University of Oxford is expected to release data on the effectiveness of its coronavirus jab in the coming weeks.
There are still a few hurdles to overcome before the Pfizer vaccine is available – and perhaps even more if you aren't on the priority list.
People involved in the Oxford University trial have stressed there's no cause for concern.
The White House had been hoping to jump the queue for a British vaccine, according to reports.
The UK has become the first Western country to have a clinically approved vaccine. Here's where things stand with the others jabs being developed.
Business secretary Alok Sharma said the new agreements would “ensure the UK has the best chance possible of securing a vaccine that protects those most at risk”.