Democratic nominee Joe Biden tested negative for COVID-19 on Friday, his doctor said. The announcement comes after President Donald Trump tested positive for the virus.

"Vice President Joe Biden and Dr. Jill Biden underwent PCR testing for COVID-19 today and COVID-19 was not detected,” Kevin O'Connor, Biden’s primary care doctor said in a statement.

“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,” Biden tweeted.

Biden had met with Trump for a debate in Cleveland on Tuesday. The two men did not shake hands and there was an exact distance of 12 feet 8 inches between their podiums during the debate.

Democratic vice presidential nominee Kamala Harris also tested negative for the virus on Friday.

The virus has touched other prominent Republican figures. Sen. Mike Lee, R-Utah, and Republican National Committee Chairwoman Ronna McDaniel both announced they had tested positive for the virus on Friday.

University of Notre Dame President John Jenkins tested positive for the virus on Friday. He met with Trump on Saturday, during the president’s White House ceremony to nominate former Notre Dame law professor Amy Coney Barrett for the Supreme Court.

Trump met with donors during a fundraiser at his Bedminster, New Jersey, golf club on Thursday. The president was reportedly feeling lethargic and his voice was hoarse.

White House Chief of Staff Mark Meadows said Friday that Trump is in “good spirits.” He did not reveal whether Trump is taking treatment for the virus.

Trump is the latest major world leader to test positive. Both U.K. Prime Minister Boris Johnson and Brazilian President Jair Bolsonaro tested positive for the virus earlier this year.