First Lady Jill Biden tests positive for Covid: W.House
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The 71-year-old wife of the president tested negative Monday but developed "cold-like symptoms late in the evening," her communications director Elizabeth Alexander said in a statement.
A subsequent rapid antigen test was negative, but a more detailed PCR test was positive, Alexander said.
The first lady has been prescribed a course of the oral antiviral pill Paxlovid and will isolate for at least five days.
She "is double-vaccinated, twice boosted, and only experiencing mild symptoms," Alexander added.
President Biden, who turns 80 in November, has recently recovered from two separate bouts of the coronavirus.
He first tested positive on July 21 and continued to carry out his duties while isolating at the White House.
After four days of negative tests he again received a positive result on July 30 and entered isolation a second time.