BORIS Johnson is in the "best possible hands" at St Thomas' Hospital and will be treating by the country's most experienced medics, experts say.
The prime minister was taken to intensive care at the central London facility this evening after being admitted yesterday with "persistent symptoms" from the coronavirus.
⚠️ Read our coronavirus live blog for the latest news & updates
Number Ten said the move had been made on the advice of doctors because his symptoms had worsened this afternoon.
Speaking to the Sun, Dr Sarah Jarvis, GP and medical director of patientaccess.com, said: "The team at St Thomas's have basically seen more patients than the rest of the UK.
"They have more experience of coronavirus than almost all other hospitals.
"They have the top doctors in the country, and what's more they have seen more Covid-19 patients.
"St Thomas's is a major trauma centre, and along with the Royal Free was the first hospital in the UK to see any coronavirus patients.
"London is about two to three weeks ahead of the rest of the UK and Guys and St Thomas's are about two to three weeks ahead of the rest of London in terms of how they understand this disease.
"He couldn't be in better hands."
CORONAVIRUS CRISIS - STAY IN THE KNOW
Don't miss the latest news and figures - and essential advice for you and your family.
To receive The Sun's Coronavirus newsletter in your inbox every tea time, sign up here.
Get Britain's best-selling newspaper delivered to your smartphone or tablet each day - find out more.
The prime minister spent ten days in self-isolation after announcing his diagnosis with coronavirus, but was taken to hospital after his symptoms failed to clear.
Reports say he was given oxygen this afternoon, though has not been put on a ventilator.
Professor Mike Grocott, a member of the Royal College of Anaesthesiologists and Professor of Critical Care at the University of Southampton, echoed the message from Dr Jarvis.
"St Thomas's have among the most experience of Covid-19, it's one of the biggest centres and they have certainly seen a large number of patients with Covid-19,"he told the Sun.
"He's in good hands."
He said that, in the case of Covid-19, the most common reason for patients to end up in intensive care is a problem with the lungs.
Give now to The Sun's NHS appeal
BRITAIN’s four million NHS staff are on the frontline in the battle against coronavirus.
But while they are helping save lives, who is there to help them?
The Sun has launched an appeal to raise £1MILLION for NHS workers.
The Who Cares Wins Appeal aims to get vital support to staff in their hour of need.
We have teamed up with NHS Charities Together in their urgent Covid-19 Appeal to ensure the money gets to exactly who needs it.
The Sun is donating £50,000 and we would like YOU to help us raise a million pounds, to help THEM.
No matter how little you can spare, please donate today here thesun.co.uk/whocareswinsappeal
He added that being on ICU would make sure the medics treating the prime minister would have ready access to the right equipment and medications should they need them.
The prime minister is now being deputised for by Foreign Secretary Dominic Raab, who tonight said the government would be continuing in its efforts to tackle the pandemic.
"[The prime minister] has been receiving excellent care at St Thomas’s hospital," Raab said.
"And we'd like to take this opportunity as a government to thank NHS staff up and down the country for all of their dedication, hard work and commitment in treating everyone who's been affected by this awful virus.
Sex SecretsProstitute who earns £2,000 a week reveals the average penis size ... and how much she enjoys work
‘MY SYMPTOMS DIDN’T MAKE SENSE’Student’s shock after doctors said ingrown toenail caused numbness in her leg - but it turned out to be a GOLF BALL-SIZED brain tumour
warning signsSeemingly normal aches and pains in your legs could be a sign of serious DVT
CHIN UPThe truth about YOUR double chin, what's really causing it - and the DAFT exercises that can help banish it
Home remediesWhat causes mouth ulcers and how to treat them with stuff you have at home
HAPPY ST PADDY'S DAYGuinness IS good for you - and here's six surprising reasons why
"There's an incredibly strong team spirit behind the Prime Minister, and making sure that we get all of the plans the Prime Minister’s instructed us to deliver to get them implemented as soon as possible."
The coronavirus has infected at least 51,000 people in the UK and more than 1.3 million worldwide since breaking out in December.