(CNN)Democratic presidential nominee Joe Biden and his wife, Jill Biden, tested negative for coronavirus on Friday morning, the Bidens’ doctor said, following President Donald Trump’s disclosure that he had tested positive just days after the first debate.
“Vice President Joe Biden and Dr. Jill Biden underwent PCR testing for COVID-19 today and COVID-19 was not detected. I am reporting this out in my capacity as both Vice President Biden and Dr. Biden’s primary care physician,” Biden’s doctor, Kevin O’Connor, said in a statement released by Biden’s campaign.
Biden said on Twitter: “I’m happy to report that Jill and I have tested negative for COVID. Thank you to everyone for your messages of concern. I hope this serves as a reminder: wear a mask, keep social distance, and wash your hands.”
Polymerase chain reaction, or PCR, tests are considered the gold standard of coronavirus tests — with results taking longer than 15-minute rapid tests but delivering more accurate results.
Biden will still travel to Michigan to campaign on Friday, the campaign confirmed to reporters set to travel with the candidate.
The former vice president’s running mate, California Sen. Kamala Harris, and her husband, Doug Emhoff, were also tested for coronavirus on Friday morning, with negative results, a campaign aide said. The two would continue on their planned travel to Las Vegas for Harris, and Greensboro, North Carolina, for Emhoff, the aide said.
The negative tests come after Biden and Trump’s podiums were placed 12 feet and 8 inches apart during Tuesday night’s debate, according to a source with knowledge of the debate set-up.
There was no contact from the Trump campaign or the White House to alert the Biden campaign of possible exposure, a senior Biden campaign official who was with the former vice president at the debate said. That aide said Biden’s campaign believes there is not much risk because “we were never near them.”
The former vice president tweeted well wishes for Trump and first lady Melania Trump, who also tested positive.
“Jill and I send our thoughts to President Trump and First Lady Melania Trump for a swift recovery. We will continue to pray for the health and safety of the president and his family,” Biden tweeted Friday morning.
Biden campaign manager Jen O’Malley Dillon sent the campaign’s staff an email Friday morning instructing staffers not to post about Trump’s positive test on social media.
O’Malley Dillon also told Biden’s campaign staff to “rest assured that our campaign staff, in consultation with health experts have continued to take every precaution to protect Vice President Biden, Sen. Harris, their spouses and our staff. The health and safety of the entire team has been, and will remain, our number one priority.”
At Tuesday night’s debate, after Trump’s entourage of family and administration officials entered without masks, a Cleveland Clinic doctor approached Trump’s guests, asked them to wear masks and offered masks to them, according to a reporter who observed what was happening in the room before the debate.
When the doctor, who declined to comment to the press, walked off the floor, a debate hall staffer told her, “That’s all you can do.”
“Why is the Trump family allowed to not wear masks in the debate hall while everyone else follows the rules?” Biden’s granddaughter Naomi Biden tweeted Tuesday night as the debate started.
CNN’s Jeff Zeleny, MJ Lee, Jasmine Wright, Dan Merica and Jamie Gangel contributed to this report.