Trump stays out of sight after returning to White House

The president remains largely isolated in White House residence (Alex Brandon/AP)

US president Donald Trump remained out of sight for a second day on Wednesday as he recovers from Covid-19, with the White House offering scant details about his health and activities.

Lashing out on Twitter, the president remains largely isolated in White House residence, where aides were instructed to take extensive precautions to prevent themselves from catching coronavirus from the contagious president.