Psaki had planned to travel with the president but scrapped the trip just as he was set to depart for Europe after learning that members of her household had tested positive for COVID-19.
“Since then, I have quarantined and tested negative (via PCR) for COVID on Wednesday, Thursday, Friday, and Saturday,” Psaki said in a statement. “However, today, I tested positive for COVID.”
She added that she was last in contact with Biden on Tuesday, and the two sat more than 6 feet apart and wore masks.
Psaki said she is only exhibiting mild symptoms.