It's deja vu all over again for U.S. President Joe Biden.
He is in isolation at the White House after testing positive for COVID-19 for a second time within ten days.
Officials say the new infection is considered a rebound, which some patients get when they take the antiviral Paxlovid to treat the first infection.
White House physician Dr. Kevin O'Connor said in a letter that Biden -- quote -- "has experienced no reemergence of symptoms, and continues to feel quite well".