(UPDATE) President has ‘mild’ symptoms; Biden tests negative for COVID-19

President Donald Trump and First Lady Melania Trump leave after the first presidential debate at Case Western Reserve University and Cleveland Clinic in Cleveland, Sept. 29, 2020. (Saul Loeb/AFP via Getty Images via ABC News)

President Donald Trump and first lady Melania Trump are in isolation with what some are calling “mild” symptoms after announcing overnight that they tested positive for COVID-19.

While it is not clear how Trump, 74, contracted COVID-19, the news came hours after it was revealed that one of his closest advisers, Hope Hicks, had also tested positive. Hicks traveled with Trump to Ohio for the debate on Tuesday and to Minnesota for a rally on Wednesday.

“We will begin our quarantine and recovery process immediately,” Trump tweeted overnight.

While speaking in Grand Rapids, Michigan, on Friday afternoon, former Vice President Joe Biden said he received two negative tests for COVID-19 on Friday morning before traveling.

His wife, Jill Biden, also tested negative for COVID-19 on Friday, the Bidens’ primary care physician said.

The Democratic presidential nominee said in his speech in Grand Rapids, “I would like to start by acknowledging which I’m sure all of you do as well, sending my prayers for the health and the safety of the first lady and president.”

“My wife, Jill, and I pray that they will make a quick and full recovery,” he said. “This is not a matter of politics. It’s a bracing reminder to all of us that we have to take this virus seriously. It is not going away automatically.”

Kamala Harris and her husband Doug Emhoff also tested negative on Friday, according to a Harris aide. The aide said they would continue on their planned travel to Las Vegas and Greensboro, North Carolina, respectively.

Trump, who is “fatigued,” has been treated with a single 8-gram dose of Regeneron’s polyclonal antibody cocktail, according to a statement from his physician.

“He completed the infusion without incident,” the physician said.

Melania Trump “remains well with only a mild cough and headache,” Trump’s physician said.

The rest of the First Family tested negative on Friday, the physician said.

(ABC News)