Covid-19: PM promises roadmap to 'steadily reclaim our lives' - BBC News
Boris Johnson also says he shares the "frustration" of parents who want to get children back to school.
Times Radio's Tom Newton-Dunn asked about transmission rates in people given the vaccine Image caption: Times Radio's Tom Newton-Dunn asked about transmission rates in people given the vaccine

Tom Newton Dunn from Times Radio asks what we know so far about the rate at which people who have had the vaccine can transmit coronavirus.

Jonathan Van Tam says there is no clear data on how the vaccine impacts transmission of coronavirus but there are studies working on finding out and we will have that information in time.

He said the question is less "will they" and more "to what extent" do they stop transmission.

Sir Patrick Vallance says "you don't have vaccines of this efficacy without there being some effect on transmission".

He says it's an important question as "it will also determine to what extent these vaccines can be used across wider society to reduce transmission overall".

Newton Dunn asks how the prime minister came to the date of 8 March to reopen schools and whether it would have been "wiser to wait until you were sure".

The prime minister says the date depends on the vaccines working in reducing mortality and serious disease.... and we need to make sure the infection rate is in the right place.

"We will keep it all under constant review," he says.