Biden tests positive again in COVID rebound, heads back to isolation [Updated]

Enlarge / US President Joe Biden waves from his isolation following a virtual meeting on July 26, 2022. (credit: Getty | The Washington Post)

Update 7/30/2022, 4:00pm ET: Late this Saturday morning, President Joe Biden once again tested positive for SARS-CoV-2, marking the start of a COVID-19 "rebound."

According to the president's physician, Kevin O'Connor, Biden is not experiencing any renewed symptoms and "continues to feel quite well." However, due to the positive rapid antigen test, he will re-enter isolation.

Biden, 79, first tested positive for SARS-CoV-2 Thursday, July 21 while experiencing mild symptoms. He immediately began a five-day course of the antiviral Paxlovid, which had ended by Tuesday, July 26, when he tested negative on a rapid antigen test. He continued to test negative on Wednesday, Thursday, and Friday before testing positive again today.