https://www.mercurynews.com/2022/07/30/president-joe-biden-tests-positive-for-covid-19-again/

President Joe Biden tested positive for COVID-19 again Saturday morning, per a letter from presidential physician Dr. Kevin O’Connor, in what is likely a “rebound” COVID-19 positivity that the doctor noted is “observed in a small percentage of patients treated with Paxlovid.”

Biden, who tested positive for COVID July 21 and had isolated, has experienced “no reemergence of symptoms, and continues to feel quite well” and will, as a result, not resume treatment, the White House said.