Biden's doctor: President's Covid symptoms 'have improved'

US President Joe Biden's condition has improved since first testing positive for Covid-19, the White House has announced.

The 79-year-old is experiencing mild symptoms, including a runny nose and fatigue. His doctor says he is responding well to medication.

Mr Biden has kept working while in isolation, and yesterday tweeted that he was "doing great".

He is expected to resume normal duties once he tests negative.

An update released on Friday by the president's physician, Dr Kevin O'Connor, noted that a slight fever on Thursday evening responded well to Tylenol.

Mr Biden still has an occasional cough, and his pulse, blood pressure and oxygen saturation levels remain "entirely normal", Dr O'Connor added.

The president is still also being treated with Paxlovid, an antiviral medicine that helps stop the Covid virus from multiplying in the body. This, in turn, allows the immune system to better combat the infection.