Conley added in a memo that Trump had been symptom-free for over 24 hours, and Trump's Covid-19 treatment has resulted in his oxygen saturation level and respiratory rate reaching normal levels.
The memo also said a blood test Monday showed Trump had coronavirus antibodies, substances that fight infection, but he had been given an experimental drug on Friday containing these.
Regeneron says it’s not possible for this type of blood test to distinguish between antibodies Trump’s body may be making and those supplied by the company’s drug.
Most likely, the ones detected in the Monday test are from the drug, the company said.
The Centers for Disease Control and Prevention says individuals can discontinue isolation 10 days after symptom onset.
While reports of reinfection are rare, the CDC recommends that even people who recover from Covid-19 continue to wear a mask, stay distanced, and follow other precautions.
Doctors said Trump began showing mild symptoms on October 1.
Access to Trump for White House aides has been extremely limited since his discharge.
White House chief of staff Mark Meadows and senior adviser Dan Scavino were among those with the president in the Oval Office, according to officials.