President Joe Biden likely has the BA.5 Covid-19 variant but his symptoms “continue to improve,” according to the White House.

“His primary symptoms, though less troublesome, now include sore throat, rhinorrhea, loose cough and body aches,” White House physician Kevin O’Connor said in a memorandum on Saturday.

The president on Friday completed his second full day of Pfizer’s Paxlovid, an antiviral pill that can reduce the risk of hospitalization for Covid-19 patients, O’Connor said.

While the president is responding to the therapy “as expected,” he has likely contracted the Covid-19 BA.5 variant, which is currently responsible for 70% to 85% of U.S. infections.

Biden, who is fully vaccinated and received two booster shots, tested positive for Covid-19 on Thursday and has reported “very mild symptoms.”