Donohue says the first lady has not had a recurrence of symptoms. He added that a “small number of close contacts” with whom Biden has been in recent contact have been notified. Biden first tested positive on Aug. 15 while vacationing on Kiawah Island, South Carolina. The first lady had “cold-like symptoms,” according to Alexander, and was put on a course of the antiviral drug Paxlovid, which can cause a rebound of Covid-19 in some people several days after testing negative. Biden had two consecutive negative tests on Sunday and traveled from South Carolina to meet President Joe Biden in Delaware. President Biden tested negative Wednesday, a White House official told CNN. According to the guidelines of the US Centers for Disease Control and Prevention, the President will cover for 10 days in an enclosed space because he is considered to be a close contact, the official said. The President also took Paxlovid when he had Covid-19 last month and eventually tested positive for a rebound case of Covid-19 after initially testing negative. Donohue told CNN that Jill Biden will remain at the family’s beach home in Delaware until she once again has two negative results in a row.