(CNN) — US first lady Jill Biden has tested positive in a ricochet case of covid-19his deputy director of communications, Kelsey Donohue, confirmed to CNN.

Biden, who is currently in Rehoboth Beach, Delaware, tested positive for covid-19 again with an antigen test on Wednesday. He had tested negative in a routine test on Tuesday.

Donohue says the first lady has had no recurrence of symptoms. She added that she was notified of a “small number of close contacts” that Biden was recently with.

Biden first tested positive on August 15 while vacationing on Kiawah Island, South Carolina. The first lady had “cold-like symptoms,” according to Elizabeth Alexander, Biden’s communications director, and was put on a course of the antiviral drug Paxlovid, which can trigger a rebound case of covid-19 in some people several days after a negative result.

Biden tested negative on two consecutive tests this Sunday and traveled to South Carolina to meet with President Joe Biden in Delaware.

President Biden tested negative on Wednesday, a White House official told CNN. Following the guidelines of the US Centers for Disease Control and Prevention (CDC, for its acronym in English), the president will wear a mask for 10 days indoors because he is considered a close contact, the official said. .

The president also took Paxlovid when he had covid-19 last month, eventually testing positive for a rebound case of covid-19, after initial negative tests.

Alexander told CNN that Jill Biden will remain at the family’s beach house in Delaware until she has two consecutive negative test results again.