Laura Kuenssberg
BBC political editor

After very, very little information was shared today, the prime minister was taken into intensive care at around 19:00 BST (18:00 GMT) tonight.

We've been told he is still conscious, but his condition has worsened over the course of the afternoon.

And he has been moved to intensive care as a precaution in case he needs ventilation to get through this illness.

The statement from Downing Street makes clear he is receiving excellent care and he wants to thank all of the NHS staff.

But something important has changed, and he has felt it necessary to ask his foreign secretary to deputise for him where needs be.

That is a completely different message from what we have heard in the last 18 hours or so, where it was continually "the prime minister is in touch" and "he is in charge" - almost like everything is business as usual.

But clearly being in intensive care changes everything.

At least 300 million Americans - approximately 90% of the population - have been told to stay at home. And last week, the nation's top infectious diseases expert, Dr Anthony Fauci, said he believed all states should issue stay-at-home orders.

So why isn't the whole of the US under lockdown? It's partly because a lot of political power in the US is decentralised - and it's down to individual state governments to issue stay-at-home orders.

So far, the governors of nine states have so far stopped short of asking all residents to remain indoors. Those states are Arkansas, Iowa, Nebraska, North Dakota, South Dakota, South Carolina, Utah and Wyoming, while Oklahoma has only ordered older and vulnerable residents to stay home.

Many of those governors argue that the outbreak is not as serious in their states - or that the decision is best left to local officials in individual cities and counties.

Arkansas Governor Asa Hutchinson, for example, said that "a targeted approach is what is working for us... people are misled by this idea that this stay-at-home order is magical".

Meanwhile, South Dakota Governor, Kristi Noem, said "South Dakota is not New York City". She added: "The people themselves are primarily responsible for their safety. They are the ones that are entrusted with expansive freedoms."

The UK PM first tested positive for coronavirus 10 days ago, experiencing what his team called "mild symptoms".

However, earlier today, his spokesman said the symptoms had become "persistent", and he was admitted to St Thomas' Hospital on Sunday evening.

A statement from Downing Streets says: “Over the course of this afternoon, the condition of the prime minister has worsened and, on the advice of his medical team, he has been moved to the Intensive Care Unit at the hospital.

“The PM has asked Foreign Secretary Dominic Raab, who is the First Secretary of State, to deputise for him where necessary.

“The PM is receiving excellent care, and thanks all NHS staff for their hard work and dedication."

UK Prime Minister Boris Johnson has been moved into intensive care in a London hospital.

Israel’s Prime Minister Benjamin Netanyahu has announced a national lockdown, from Tuesday to Friday, over the Jewish holiday of Passover.

In a televised address, he said this means people will have to stay at home on Wednesday evening, instead of travelling to traditional "Seder" meals.

Monday's figures from Europe suggest the strict measures brought in to tackle the outbreak may be having an effect. Here’s the latest:

• German Chancellor Angela Merkel says the EU is facing its biggest challenge since its founding as it tackles the coronavirus outbreak
• The death toll in Italy rose by 636, higher than the reported figure on Sunday. But infections slowed again, with the number of new cases dropping sharply to its lowest one-day increase since 17 March. Italy remains the worst affected country worldwide in terms of deaths, with the total official toll now up at 16,523
• In Spain, which has the highest number of confirmed cases in Europe, the daily death toll was 637 on Monday – the lowest number since 24 March. Official figures also showed the infection rate was decreasing
• Austria has become one of the first countries outside Asia to announce plans to ease its lockdown measures. Though bars and restaurants will stay shut, some shops will be able to reopen next week – although Chancellor Sebastian Kurz said people would still have to abide by social distancing rules. From Monday all Austrians must now wear face masks in supermarkets – you can read more about it here
• But the crisis is far from over. Confirmed cases of the virus are rising sharply in Turkey, where 31 cities have been shut to all but essential travel and where the young, old and chronically ill have all been placed under curfew. However, most people are still going to work, and despite increasing restrictions critics are calling for a nationwide lockdown like elsewhere in Europe

Andrew Harding
BBC News, Johannesburg

The coronavirus is having an unusual impact in the Sahara desert where it has prompted some rebel and government forces in the remote city of Kidal, in Mali, to co-operate, in order to make preparations for quarantine stations.

Mali has been wrestling for years with a separatist rebellion, and more recently with a dramatic upsurge in attacks by Islamist groups.

Speaking to me from Kidal, the separatist rebel leader, Bilal ag Acherif, outlined plans to unite to fight a common enemy.

He said more joined-up action was needed against the virus.

But that new spirit of co-operation stretches only so far. Islamist militancy has engulfed the wider region, forcing more than a million people to flee their homes in recent years.

A Malian army base in another town on the edge of the Sahara was attacked overnight.

If anything, the violence now appears to be escalating, with Islamist militant groups seeing the virus – and its accompanying lockdowns – as an opportunity to exploit.

Read more here.

Image source, Getty Images

Russian military specialists are helping Serbia to disinfect medical facilities, as the Balkan state - a candidate for EU membership - battles coronavirus.

Russian military transport planes went on a similar mission to northern Italy last month. And another Russian plane took medical supplies to New York.

The Kremlin has dubbed its emergency aid “from Russia with love”. But critics suspect Russia of using the crisis to score some propaganda points, as we reported here.

Russia is historically a close ally of Serbia and it does not recognise Kosovo’s independence from Serbia.

But Russia’s crisis mission can also be seen as a challenge to the EU, which is preparing to let Serbia join the bloc.

Serbia has imposed a strict lockdown: its borders are closed and it has a curfew. Its official toll is 51 dead and 1,908 current Covid-19 cases.

Image source, Getty Images

• The numbers of doctors who have died after contracting coronavirus in Indonesia has doubled to 24 in a week, says the Indonesian Doctors Association. A total of 209 people have died in Indonesia as a result of the virus so far - the highest death toll in south-east Asia after China
• India's Prime Minister Narendra Modi and other top government officials - including MPs - have agreed to take a 30% pay cut for this year as the country battles the coronavirus outbreak. The announcement comes almost two weeks into a three-week lockdown, which has left millions without work
• Japan is preparing to declare a state of emergency in Tokyo and six other prefectures - potentially as soon as tomorrow. It follows a spike in cases. You can read the full story here
• Jacinda Ardern has said New Zealand will not be coming out of lockdown early, despite promising signs the current measures were working. Monday saw just 67 news cases reported. She also reassured the nation's children that the Easter Bunny and Tooth Fairy were, indeed, essential workers - although they might have a little more trouble than usual completing their deliveries

Image source, Sweeney family

Tributes have been paid to a care worker who died in Scotland over the weekend after contracting coronavirus.

The family of Catherine Sweeney said the "wonderful mother, sister, and beloved aunty" had worked as a home carer for over twenty years.

"She was a caring and generous person, especially when it came to her time," the family added.

"After a life time of service to the community, we know she will be sorely missed, not just by her loving family, but by many others for her incredible warmth, care, and dedication."

"We want to thank the doctors and nurses who heroically looked after her in her final days".

Image source, Getty Images

Policies concerning masks vary from country to country. In Turkey, the government says it will post five masks a week to anyone aged 20-65 who requests them.

The government's Sewing Factory Department normally makes military uniforms - but is now producing one million masks and 5,000 items of protective clothing a week.

People aged under 20 or over 65 are under curfew, apart from some workers.

The country has more than 27,000 confirmed cases - the ninth highest in the world - and 574 deaths.

On Monday it imposed strict new measures.

These charts give you the key data for Monday.

More than 10,000 people have now died from coronavirus in the US, according to Johns Hopkins University, which is tracking the pandemic. The death toll is currently 10,335, with more than 347,000 confirmed cases in the US.

Canada's chief public health officer is now telling people to wear non-surgical masks out in public.

Dr Theresa Tam told media that there was evidence that the virus can be transmitted by people without symptoms or just before they develop symptoms.

She cautioned that while there was no evidence that a mask can protect the wearer, it may prevent the wearer from spreading the virus to others.

The about-face in policy is similar to the one issued by the US Center for Disease Control last week.

She cautioned that people should not wear surgical masks, which must be saved for front-line workers.

Ontario Premier Doug Ford said his province would run out of personal protective equipment, including masks, within a week.

The issue has been compounded by Donald Trump's order halting shipments of masks to Canada. Mr Ford said a shipment of three million medical masks was blocked from coming into the country at the US border.

Prime Minister Justin Trudeau said that several shipments coming from abroad had been delayed or were missing equipment.

Deputy Prime Minister Chrystia Freeland cautioned the US that the market was a "two-way street", and that Canada also shipped necessary supplies across the border.

France has reported 833 deaths in 24 hours, its highest since the outbreak began.

The figure includes people who died in hospitals and nursing homes.

The total number of fatalities from coronavirus there now stands at 8,911 - the fourth highest in the world after Italy, Spain and the US.

"We have not yet reached the end of the ascent of this epidemic," Health Minister Olivier Véran said.

Image source, Getty Images

More from the briefing by New York state Governor Andrew Cuomo.

He says the number of deaths is "frightening". He added he has kept a sense of perspective by talking to his daughters, who are "frankly wiser than myself sometimes".

"We like to think we can fix everything - we can't... the undeniable truth here is that this virus is a deadly enemy, and we will lose people who are vulnerable to the virus," says Mr Cuomo.

"The challenge is to make sure we don't lose anyone who could have been saved if our healthcare system was operating fully."

"We're also very aware of the mental health aspect of this situation, the stress, the isolation that this has caused. People are trying in their own way to grapple with what this means."

He added that mindfulness app Headspace was offering free resources to New Yorkers, while the state also had an emotional support hotline.

Image source, Family handout

A care worker in Manchester is suspected to have been infected with coronavirus before her death last week.

Mother-of-two Carol Jamabo, 56, who worked as a carer for Cherish Elderly Care in Bury, died at Salford Royal Hospital on Wednesday.

Her family said she fell ill about a week before her death, and her youngest son - who had been living with her - has tested positive for the virus.

Ms Jamabo moved to the UK from Nigeria in the early 1990s and had previously worked in the prison service and as an NHS administrator at Guy's and St Thomas' Hospital NHS Foundation Trust in London.

Her nephew Dakuro Fiberesima, from Purfleet in Essex, said she was "just an amazing aunt".

"Growing up in an African background, the aunts are very strict, but she was fun and had such a positive character," he added.

Harry Potter author JK Rowling has revealed that she has been showing "all symptoms" of coronavirus over the last fortnight.

In a Twitter post, external, Ms Rowling said that she was now "fully recovered".

She added that a video posted by doctors at Queen's Hospital in east London, on how to relieve respiratory symptoms, external had "helped a lot" during her illness.

Her husband - a doctor - had recommended it to her.

Image source, Getty Images

New York state has more than 122,000 coronavirus cases - about a third of all the cases in the US - and the daily news briefings from Governor Andrew Cuomo have become required viewing for many.

In today's briefing, Mr Cuomo said social distancing appeared to be working, with the death rate "flat for two days in a row", and both the number of hospital admissions, and people in intensive care, going down.

This "would suggest a possible flattening of the curve", he said, adding: "It is hopeful but it is also inconclusive, and it still depends on what we do... and how successful we are at social distancing."

Mr Cuomo also said:

• Schools and non-essential businesses would stay closed until at least 29 April
• He was going to ask President Donald Trump whether the hospital navy ship sent to New York, the USNS Comfort, could be used for coronavirus patients, to help relieve overloaded local hospitals. Currently, the ship is just designated for non-coronavirus patients
• There was a "danger is getting over-confident too quickly" and loosening social distancing measures too soon. "Hong Kong has made that mistake, South Korea has made that mistake. We're not going to make that mistake," he said.

George Wright
BBC News

Image source, Kenneth William Pesenti

Kenneth William Pesenti, 26, graduated in medicine from the University of Genoa in Italy just two weeks ago. Since then he has been working with the Italian Red Cross in Bergamo, one of the worst hit areas of the country.

"What we saw there is probably the closest I will ever see to an actual war zone.

"We went to rescue a lady whose mother had died the same day and she was showing the same symptoms.

"Another guy we rescued, his wife burst out in tears saying she had seen the same scene from a neighbour, where the people in white come and take your loved one away and then they never see them again, not even for the funeral.

"It’s a bit haunting.

"I graduated exactly two weeks ago. We graduated via webcam. I explained my thesis via webcam and then I celebrated via webcam with my family and friends.

"It was absolutely not what I was expecting to be doing within a week of graduating ... but I’ve been preparing for this for the last six years of my life."