In recent days, three different vaccines against coronavirus infection have been unveiled — each appearing to show huge promise.
The latest, a vaccine developed by Astra Zeneca and scientists at Oxford University, is expected to be relatively cheap and easy to store.
The UK government has pre-ordered 100 million doses of this vaccine and their are hopes that it will quickly gain regulatory approval.
So how can medical experts be certain of the safety of a vaccine that has been developed so quickly? How soon can people in the UK expect to be vaccinated? And how will the government determine who gets priority?
Huw Edwards presents BBC News at Ten reporting by health correspondent Catherine Burns — with answers to some of the key questions about the UK’s vaccination plans.
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