U.S. Vice President Kamala Harris has tested positive for COVID-19, her office announced on Tuesday.

"Today, Vice President Harris tested positive for COVID-19 on rapid and PCR tests," Kirsten Allen, Harris's press secretary said in a statement. "She has exhibited no symptoms, will isolate and continue to work from the Vice President's residence.

"She has not been a close contact with the President or First Lady due to their respective recent travel schedules," the statement added. "She will follow CDC guidelines and the advice of her physicians. The Vice President will return to the White House when she tests negative.”

According to an administration official, Harris last saw U.S. President Biden in person on April 18 at the White House Easter Egg Roll. She then traveled to California, returning to Washington, D.C., on Monday night.

Harris, who is fully vaccinated and boosted, is the highest-ranking Biden administration official to test positive for the virus to date.

News of her positive test comes amid a surge of cases in Washington, D.C., as the United States continues to grapple with a new wave driven by a more transmissible Omicron sub-variant known as BA.2.

According to Johns Hopkins University, there have been more than 80 million confirmed coronavirus cases in the United States since the beginning of the pandemic — far more than any other country in the world. More than 990,000 Americans have died as a result of complications from COVID-19.