Donald Trump and his wife Melania travelled around the US with his aide Hope Hicks before all three tested positive for coronavirus.
Here Sky News looks at where the president, the first lady and his closest aides have been in the past week, where they could have contracted the virus and who they might have given it to.
Saturday 26 September
Donald Trump held a reception for evangelical faith leaders inside the Oval Office on Saturday evening.
He then held a press conference in the Rose Garden at the White House.
That evening he and his aide Hope Hicks travelled to Pennsylvania for a rally.
He returned to the White House at 10pm.
Sunday 27 September
On Sunday, he held a news conference at the White House before he and Melania hosted a reception for Gold Star families – those who lost relatives during the Iraq War.
Monday 28 September
On Monday, Mr Trump didn’t leave the White House, appearing in the Rose Garden in the afternoon to hold a briefing on the US coronavirus testing strategy.
That event was attended by administration officials, including Vice President Mike Pence, members of Congress and other state officials.
He also surveyed a truck produced by Lordstown Motors on the south lawn with two members of Congress and three representatives from the manufacturer that day.
Tuesday 29 September
Mr Trump and his wife travelled on Air Force One with Ms Hicks and the rest of his campaign party to the first presidential debate in Cleveland, Ohio, on Tuesday.
The debate was held with a small audience, but just Mr Trump, Joe Biden and moderator – Fox News anchor Chris Wallace – were on stage. They were both tested beforehand and kept 2m apart at all times – but did not wear masks.
The Trumps’ children and senior staff were also part of the party who travelled to the debate and did not wear face coverings during the 90-minute event – violating host rules.
Everyone was back at the White House by 12.30am on Wednesday.
Wednesday 30 September
On Wednesday, the president and his wife travelled with his campaign party on Marine One and Air Force One to a fundraiser at a private house in Minnesota, before a rally in the city of Duluth.
His aide Ms Hicks is believed to have felt ill on the way home to the White House, so was quarantined on Air Force One on the journey back.
Everyone was back at the White House by 1am on Thursday.
Thursday 1 October
With Ms Hicks self-isolating, the president and the first lady travelled to Bedminster, New Jersey, for a round table event and a fundraiser.
Several members of the Trump campaign party who were in close proximity to Ms Hicks decided not to travel with him to New Jersey.
The Trumps arrived back at the White House by 6.30pm, when Mr Trump tweeted to say he would be interviewed on Fox News at 9pm.
He then gave a live broadcast address to the annual Alfred E. Smith memorial foundation dinner in New York, when he claimed “the end of the pandemic is in sight”.
Fox News Sunday anchor Sean Hannity interviewed the president, who revealed Ms Hicks had tested positive for COVID-19.
Once the interview was over, Mr Trump tweeted to confirm Ms Hicks’s diagnosis and that he and the first lady were now self-isolating.
They said they would remain in quarantine while awaiting their own test results.
He wrote: “Hope Hicks, who has been working so hard without even taking a small break, has just tested positive for COVID-19.
“Terrible! The First Lady and I are waiting for our test results. In the meantime, we will begin our quarantine process!”
Friday 2 October
At around 1am on Friday, Mr Trump tweeted to confirm he and Melania have tested positive for the virus.
He wrote on Twitter: “Tonight @FLOTUS and I tested positive for COVID-19. We will begin our quarantine and recovery process immediately. We will get through this TOGETHER!”
Melania then tweeted just under an hour later: “As too many Americans have done this year, @POTUS & I are quarantining at home after testing positive for COVID-19.
“We are feeling good & I have postponed all upcoming engagements. Please be sure you are staying safe & we will all get through this together.”
Dr Sean Conley, physician to the president, then released a statement that he and the first lady “are both well at this time, and they plan to remain at home within the White House during their convalescence”.
Over the past week, the couple have been in close contact with at least 18 members of his family and campaign party.
- His daughter Ivanka Trump and her husband and senior adviser to the president Jared Kushner
- His son Eric Trump and his wife Lara Trump
- His daughter Tiffany Trump
- White House press secretary Kayleigh McEnany
- Republican representative for Ohio, Jim Jordan
- Justice campaigner Alice Marie Johnson
- National security adviser Robert O’Brien
- Former New York Mayor Rudy Giuliani
- White House chief of staff Mark Meadows
- Adviser Kimberly Guilfoyle
- Adviser Derek Lyons
- Campaign manager Bill Stepien
- Senior adviser Jason Miller
- Press assistant Gaby Hurt
- White House deputy chief of staff for communications Dan Scavino
- Senior policy adviser Stephen Miller