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Coronavirus live blog, March 17
Last updated: Tuesday, 17 March, 2020, 19:25
PM advises to "avoid" pubs, clubs, the office, and all unnecessary social contact and travel
Idris Elba becomes the latest celebrity to test positive for the virus, as Tom Hanks and Rita Wilson leave hospital
France imposes 15-day lockdown and deploys 100,000 police to enforce it
Nazanin Zaghari-Ratcliffe released from prison in Iran
Nazanin Zaghari-Ratcliffe has been released temporarily from prison in Iran with a ankle tag.
The move comes as Iran attempts to control the spread of coronavirus.
Foreign secretary Dominic Raab said: "I am relieved that Mrs Zaghari-Ratcliffe was today temporarily released into the care of her family in Iran. We urge the regime to ensure she receives any necessary medical care.
"While this is a welcome step, we urge the government now to release all UK dual nationals arbitrarily detained in Iran, and enable them to return to their families in the UK."
Boris Johnson is holding his daily press briefing now
The Prime Minister is holding is daily public briefing on the coronavirus outbreak.
He is joined by Chancellor Rishi Sunak.
More to follow imminently
PM: help for families and business will be delivered with "profound sense of urgency"
The Prime Minister has said the government will provide help for families and businesses who feel the financial impact of measures implemented to fight coronavirus.
These would be delivered with a "profound sense of urgency".
PM: "we must act like war-time government"
He adds: "I stress although the measures are extreme we may well have to go further and faster.
"And we must act like any war-time government and do anything it takes to support our economy."
Rishi Sunak to help businesses with £330bn in back loans and guarantees
The Chancellor Rishi Sunak is speaking now.
He's described the coronavirus pandemic as "a public health emergency but also an economic emergency".
He has said "the government will stand behind business small and large."
This will amount to £330bn of guarantees, he claims.
Chancellor: Three month mortgage holiday for those in need
Sunak adds that mortgage lenders will give a three month holiday mortgage to those in need of help while coronavirus measures are in place.
He said: "For those in difficulty due to coronavirus, mortgage lenders will now offer a three-month mortgage holiday so that people will not have to pay a penny towards their mortgage cost while they get back on their feet."
Earlier Sunak said businesses which were last week promised no business rates this year will now be issued with grants of £25,000.
PM: 'state to stand behind people'
The Prime Minister, the Chancellor and chief scientific adviser Sir Patrick Vallance are taking questions now.
Asked if firms who need to pay wages now will miss out on financial support Johnson says: "the state is asking people to make considerable changes to their lives - only right that the state should stand behind people as they make those changes.
PM: 'the more the public follow advice the better the chances of slowing the disease'
Earlier today the PM's father said that he would continue to visit the pub despite measures urging members of the public to avoid pubs and restaurants.
Quizzed on this, the PM says: "What I say to people who are thinking about this advice is that the more we follow this advice, the better our chances collectively of slowing the disease, of protecting the NHS and of saving life."
Sir Patrick: 'no one knows what will happen when we relax measures'
The chief scientific adviser has said that they are unsure what will happen when measures are relaxed.
He said: "In terms of the timeframe, this needs to be done in a way that we can look at releasing it at some point and seeing what the effect is.
"None of us, anywhere in the world, know how to do that yet in terms of whether it bounces back or not at that point. So, that is what's going to have to happen after we've got this under control is to look at how you then release these measures at the right time to monitor the effects.
"In terms of vaccines, and vaccines are the answer to this, it's remarkable the progress that has been made.
"It's only probably three or four years ago when the standard answer would be it takes 20 years to make a vaccine, it is now the case that there's a vaccine in the UK that may go into the clinic for first testing in April.
"I still believe we will be lucky to get a vaccine for mass use in a year from the start of this, that would be extraordinary, but there is progress."
Chancellor: businesses should refrain from laying off staff in response to measures
The chancellor urged businesses not to lay off staff in response to yesterday's measures.
He said: "We will help them [businesses] get through this. They don't need to rush these decisions.
"We want to help them get through this. It is better for them, better for the economy and better for everyone."