In a letter on Saturday, White House doctor Dr. Kevin O'Connor stated that Biden "has encountered no reemergence of symptoms, and continues to feel fairly well."
Biden will repeat isolation measures after testing positive for the illness nine days ago but afterward testing negative twice earlier this week.
In a tweet on his successful instance, Biden stated that it can happen to a "tiny minority of people."
Biden tweeted “I’ve got no symptoms but I am going to isolate for the safety of everyone around me. I’m still at work, and will be back on the road soon,”
On July 21, Biden, 79, had his initial positive test; he was then given Paxlovid, an antiviral medication. The virus was not found in his blood samples on July 26 or 27.
On Monday, Dr. Ashish Jha, the White House COVID-19 coordinator, told reporters that data "suggests that between 5 and 8% of people have rebound" after Paxlovid treatment.