The number of people who work with Donald Trump who have tested positive for coronavirus has been growing since the president confirmed he had contracted the virus. Late on Saturday night in Washington one of Trump's personal assistants said he had Covid-19, according to US media.

Among those who tested positive are:

• First Lady Melania Trump
• Campaign adviser and former New Jersey Governor Chris Christie
• Close aide Hope Hicks (believed to be the first to show symptoms)
• Campaign manager Bill Stepien
• Former White House counsellor Kellyanne Conway
• Republican Senator Mike Lee
• Republican Senator Thom Thillis
• Ronna McDaniel, Republic National Committee chairwoman

If you're just waking up and joining our live page, here's a recap of the main stories on Sunday:

• Donald Trump has spent a second night in hospital near Washington DC after falling ill with coronavirus
• He posted a video on Twitter from the Walter Reed hospital in which he said he was feeling "much better" and he was looking forward to resuming the election campaign
• The president's doctor said on Saturday night that the medical team is "cautiously optimistic" but that Trump is "not out of the woods yet"
• His statement came after mixed messages from the hospital and the White House - the president's chief of staff said earlier on Saturday that the president's vital signs over the last 24 hours had been "very concerning" and that the next 48 hours would be critical
• A well-attended event on the White House lawn is coming under scrutiny after eight people there, including Trump and his wife Melania, are confirmed to have tested positive. Many attendees sat close together and did not wear masks, while some bumped fists, shook hands or even hugged one another in greeting
• Trump's election campaign has announced it will continue at full speed with politicians and family members standing in for the president while he is hospital. Democrats Joe Biden and Kamala Harris have continued their campaigning
• Republicans say that the hearings for Trump's Supreme Court pick Amy Coney Barrett will go ahead from 12 October, despite a rising number of coronavirus cases among senators. Democrats have called for the hearings to be re-scheduled

Amid heightened concern about the spread of coronavirus among politicians, one candidate set up his own plexiglass screen around his podium on a debate stage on Saturday.

South Carolina Democratic Senate candidate Jaime Harrison debated Senator Lindsey Graham on Saturday night in Columbia, South Carolina. He explained why he set up the screen during a segment about the pandemic.

“Tonight I am taking it [coronavirus] seriously. That’s why I put this plexiglass up because it’s not just about me, it’s about the people in my life that I have to take care of as well, my two boys, my wife, my grandmother,” Harrison said.

Senior Republican Lindsey Graham said he tested negative for the virus on Saturday after he learned that a colleague on the Senate Judiciary Committee had contracted Covid-19.

Image source, Getty Images

Rallies in support of President Donald Trump have taken on a different meaning in the past 48 hours as well-wishers gathered in groups across the country to wish the president a speedy recovery.

Take a look at our gallery of pictures taken across the US, including at a vigil outside the hospital where Trump is being treated for Covid-19.

Image source, Getty Images

Another employee at the White House has tested positive as the number of confirmed infections in people in close proximity to Trump continues to rise, reports ABC News., external

Director of Oval Office Operations and Trump's personal assistant, Nick Luna, tested positive for Covid-19 - ABC reports that Luna travels frequently with Trump including all of the past week.

We don't know everything about what type of medical care Donald Trump has received at the White House and the Walter Reed hospital since falling ill with coronavirus, but his doctors have released some information.

The president's personal physician Dr Sean Conley said that when Trump was admitted to hospital he started a five-day course of the drug remdesivir and was given an experimental antibody cocktail. Remdesivir has been shown to shorten the recovery time from the coronavirus.

On Saturday Dr Conley said the president had received a second dose of remdesivir.

Several US media outlets said the president received oxygen at the White House before he was taken to hospital.

President Trump asked doctors about the drug hydroxychloroquine, but is not taking it at this time, his doctors say. Early in the pandemic, he touted the medicine as a treatment for coronavirus - a recommendation not borne out by medical research.

On Saturday Donald Trump's doctors and the White House chief of staff sent different messages about the president's health.

Trump's physicians said they were "cautiously optimistic" about his condition, but Mark Meadows at the White House said he was not yet on the path to recovery.

On Saturday night Meadows clarified his remarks in an interview on Fox News., external

“Yesterday, we were real concerned," Meadows said. "He had a fever, and his blood oxygen level dropped rapidly.” But he said he was optimistic about the president's prognosis, while adding “the next 48 hours … with the history of this virus, we know can be tough.”

Before Trump went to Walter Reed hospital on Friday, he was given oxygen at the White House, a senior official confirmed, according to the Washington Post newspaper., external

Image source, Reuters

There are lots of questions about what might happen in the coming days and weeks following Donald Trump falling ill with coronavirus. Something many people are asking is what if Trump becomes too ill to run the country.

The US constitution has a process laid out for that scenario.

The 25th Amendment allows a president to hand over power to the vice-president, which means Mike Pence would become acting president. Once fit again, Mr Trump could reclaim his position.

If Mr Pence became incapacitated as well, under the Presidential Succession Act Nancy Pelosi, the speaker of the House of Representatives - a Democrat - would be next in line, although constitutional experts say such a transfer of power would prompt legal battles.

Read more about this line of succession, as well as answers to other commonly-asked questions.

Image source, Press Association

Donald Trump isn't the first world leader to fall ill with coronavirus. Brazil's Jair Bolsonaro tested positive in July after experiencing a high temperature. He had mild symptoms for a number of days and on 25 July said he tested negative.

In the UK, Prime Minister Boris Johnson was admitted to hospital with Covid-19 in April and spent three nights in intensive care.

On Saturday Foreign Secretary Dominic Raab revealed just how fearful he had been for the prime minister's health. The virus "nearly took the life" of Johnson, he said.

There are now eight confirmed cases of coronavirus among people who attended last Saturday's event in the White House Rose Garden. As well as the president and his wife, they include his former counsellor, Kelly-Anne Conway, two Republican senators, and an unnamed journalist.

The World Health Organization says it commonly takes around five to six days for symptoms to start , externalafter contracting the virus.

Dozens of lawmakers, family members and staff from the White House were at the event. Those who have tested positive were seated in the first few rows.

Read more here.

Image source, EPA

Donald Trump's personal doctor Sean Conley has given another update on the president's condition, the White House press secretary has tweeted.

"While not out of the woods yet, the team remains cautiously optimistic," the doctor wrote in the letter.

It also said that the president had made "substantial progress since diagnosis", that he was without a fever and did not need additional oxygen.

Trump had been "up and moving about" in the hospital during the afternoon, Dr Conley added.

Earlier on Saturday there was confusion about Trump's health, with conflicting reports coming from his doctors and the White House.

Trump is remaining in hospital for his second night and is expected to stay there for a "few days" yet.

On Saturday Donald Trump's opponents in the Democratic Party were keen not to attack the president after he fell ill with coronavirus. Both presidential nominee Joe Biden and Senator Bernie Sanders, who ran unsuccessfully to be the Democratic Party's candidate for president, sent their best wishes to Donald Trump during live campaign events.

But they both also reminded their audiences that Trump is one case in millions in the US, which remains the world's hardest-hit country in case numbers and fatalities.

This week Trump joined more than 7.3 million Americans with confirmed coronavirus. The country has had more than 208,000 deaths, according to America's Johns Hopkins University.

New York was the epicentre of the pandemic earlier this year. The north-eastern US state has recorded more than 33,000 deaths, with over 461,000 cases.

But California, Florida and Texas have all now surpassed New York for total cases, although they have recorded fewer deaths.

On 1 October, Johns Hopkins University identified North Dakota, South Dakota, Wisconsin, Utah and Montana as the "highest-risk places", which all saw a spike in new daily cases.

Walter Reed National Military Medical Center, where President Trump was flown by helicopter on Friday evening, is about 9 miles (14 km) north of the White House in Bethesda, Maryland.

Known as the President's Hospital, it's where US presidents usually have their annual check-up and it has also treated military staff for more than a century.

Earlier this year Trump visited wounded soldiers and healthcare workers there. The visit was the first time he had been pictured wearing a face mask.

A lot has happened in the past 48 hours.

Since Donald Trump revealed that he tested positive for coronavirus, we heard conflicting reports about the president's health from doctors on Saturday. Trump also delivered his own messages about how he's feeling from the Walter Reed hospital near Washington, posting a video on Twitter in which he said he was feeling "much better".

But here's a reminder from our White House reporter, Tara McKelvey, about what a seismic day Friday was.

For months Trump and his aides have gone without masks and often appear to have lived as if there was no pandemic. Then the president tested positive, and their world changed.

Early on Friday evening, it was peaceful at Walter Reed National Military Medical Center, and so quiet you could hear an acorn drop. But the mood was tense.

A security official tried to tell his colleagues where they should stand for the president's arrival. The official admitted that his plan was a work in progress. "I don't think anyone knows what's going on," he said.

It was an accurate observation outside the hospital - and for much of the day at the White House, too.

Read more from Tara's report.

Image source, Getty Images

Donald Trump's campaign team has announced a series of campaign events featuring the president's allies and family members that will continue while he remains in hospital with coronavirus.

"Operation MAGA will fire up the entire MAGA universe to keep President Trump’s campaign at full speed until our Commander-in-Chief returns to the campaign trail,” campaign manager Bill Stepien said in a statement., external

Events will be virtual until 7 October when Vice-President Mike Pence, who tested negative for Covid-19 on Friday, will appear in the vice-presidential debate and then he will resume in-person events.

Meanwhile campaigning by the Democrats has continued although the campaign has moved to take down all its negative ads regarding Trump temporarily.

Vice-presidential candidate Kamala Harris addressed a mobilisation drive-in event in Las Vegas, Nevada on Friday, while Joe Biden campaigned in Grand Rapids, Michigan. He also spoke at a virtual town hall meeting on Saturday.

Like many parts of the world, the US has seen serious outbreaks of coronavirus in crowded workplaces where employees have often been unable to properly protect themselves against infection.

The meatpacking industry has been particularly badly-affected, including in states like Nebraska where one in five of the state's 25,000 cases was a meatpacking worker.

On top of that, 60% of the state's confirmed cases were in Hispanics, while they make up just 11% of the overall population.

One politician, called Tony Vargas - the state's only Latino lawmaker - has been trying to introduce more worker protections to address the racial inequality in how the pandemic has played out in Nebraska.

For months, his office received distraught emails, calls and Facebook messages from workers and their family members, pleading for more oversight.

Read more about Tony Vargas's crusade against Covid-19.

It's unclear exactly how Donald Trump caught the virus, but scientists say it is best for people to maintain physical distance and to wear a face covering over their noses and mouths.

Making sure you're wearing a mask - and doing it right - is key, as BBC health correspondent Laura Foster explains.

ABC News journalists who came into contact with Donald Trump's campaign advisor Chris Christie following the presidential debate on Tuesday will self-isolate for 14 days, US media reports.

The former New Jersey governor said on Saturday that he tested positive for Covid-19 and he went into hospital as a "precaution".

Christie was part of Trump's debate preparation team and appeared as an analyst on an ABC post-debate show.

Three of the journalists on Tuesday's studio panel tweeted that they tested negative for coronavirus on Saturday.

"Anyone on our staff in direct contact with the Governor as defined by the CDC will self-isolate for 14 days. We wish the Governor a speedy recovery,” the network said in a statement.

Among the events that could be disrupted by the run of politicians testing positive for coronavirus are the hearings about a new Supreme Court justice.

After the death of Justice Ruth Bader Ginsberg on 18 September, Donald Trump and the Republican party moved quickly to try to make sure they can fill her seat before the 3 November election.

Democratic presidential candidate has Joe Biden urged the Senate not to "act on this vacancy until after the American people select their next president and the next Congress".

Confirmation hearings for nominee Amy Coney Barrett are scheduled to begin on 12 October at the Senate Judiciary Committee.

But two members of the committee have now tested positive for coronavirus - they are Senator Mike Lee and Senator Thom Tillis.

Other members of the committee were present at the event on the White House lawn where a number of officials were thought to have been exposed to Covid-19 last Saturday.

Now Democrats on the committee have told Chairman Lindsey Graham that he is putting their health at risk by planning to stick to the schedule, according to newspaper The Hill., external

“To proceed at this juncture with a hearing to consider Judge Barrett’s nomination to the Supreme Court threatens the health and safety of all those who are called upon to do the work of this body,” the 10 Democrats on the committee wrote in a letter to Senator Graham on Saturday, reports The Hill.

Image source, Reuters

At a virtual campaign event earlier on Saturday, Joe Biden was asked by transport workers how he would handle the pandemic differently.

"Fundamentally differently," he answered, before adding that it has become difficult to criticise Donald Trump's handling of coronavirus after the president fell ill.

"I'm in a little bit of a spot here because I don't want to be attacking the president and the first lady now, because now they have contracted coronavirus," he said.

Reflecting on his own experience of losing family members, he said "this isn't about politics", and went on to describe the huge toll the pandemic has taken on the US where the death toll has reached more than 200,000.

Biden has wished both Donald and Melania Trump a swift recovery.