Donald Trump Jr. has tested positive for COVID-19

Donald Trump Jr., the eldest son of U.S. President Donald Trump, was quarantining Friday after learning he has been infected with the coronavirus, a spokesperson said.

The younger Trump learned of his diagnosis at the beginning of the week and has had no symptoms, said the spokesperson, who was granted anonymity to discuss private medical information.

Trump Jr. is following all medically recommended guidelines for COVID-19, the spokesperson said.

The 42-year-old is the latest member of the president's family to become infected with a virus that has killed more than 250,000 Americans and infected nearly 12 million others.

President-elect Joe Biden made PresidentTrump's response to the virus a top issue in the recently concluded race for the White House, though Trump has yet to acknowledge the results of the election.

President Trump, his wifeMelania Trump and their son, Barron, have all recovered from their coronavirus infections in October. The president spent three days in a military hospital where he was treated with experimental drugs; Melania Trump weathered her illness at the White House.

Donald Trump Jr.'s girlfriend, Kimberly Guilfoyle, tested positive for the coronavirus in July.