U.S. First Lady Jill Biden has tested positive for COVID-19 and she will isolate for at least five days, according to a statement from her Communications Director Elizabeth Alexander.

U.S. President Joe Biden and First Lady Jill Biden return to the White House in Washington, D.C., the United States, Feb. 14, 2022. (File photo: Xinhua)

U.S. President Joe Biden tested negative for COVID-19 on Tuesday morning in an antigen test, White House Press Secretary Karine Jean-Pierre said on Twitter.