US President Donald Trump sparked an angry backlash from the medical community on Sunday with a protocol-breaking visit to his supporters outside the hospital where he is being treated for the highly infectious, potentially deadly new coronavirus.Mr Trump, wearing a face mask, waved from inside his bulletproof vehicle during the short trip outside Walter Reed military medical centre near Washington, which appeared designed to take back the narrative on his improving health after a weekend of muddled messaging from his doctors.The last-minute limousine outing came with Mr Trump’s doctors satisfied enough about his progress to suggest the possibility of his being discharged on Monday. ( Courtsey White House)