As the UK approves the Pfizer/BioNTech coronavirus vaccine, what do we know about the rollout and could it start within days? Please subscribe HERE http://bit.ly/1rbfUog

People should not get "carried away with over optimism" after the UK approved its first coronavirus vaccine, UK Prime Minister Boris Johnson has warned.

The prime minister said it did not mean "our struggle is over", saying parts of the economy still faced tough restrictions.

England's deputy chief medical officer Jonathan Van-Tam urged patience over the rollout of the Pfizer/BioNTech jab, which begins early next week.

But care home residents will have to wait due to logistical challenges.

What do we understand of the rollout of the vaccine and who will get priority?

How effective will the vaccine be long-term? And why has the UK approval come first?

UK Editor Katie Razzall reports and Emily Maitlis speaks to BioNTech’s Chief Business and Commercial Officer, Sean Marett, SAGE member Professor John Edmunds, the World Health Organisation’s Dr Margaret Harris and Professor Anthony Harnden, from the Joint Committee of Vaccination and Immunisation.

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