The President of the United States, Donald Trump, is suffering from mild coronavirus symptoms after testing positive last night.He and his wife, First Lady, Melania, have both had positive tests and are self-isolating at the White House, their main residence.It follows the announcement that one of his aides, Hope Hicks, had tested positive.A White House official told NBC News that Mr Trump is experiencing "mild symptoms" and is working from his residence.The official insisted it is "business as usual" for the President and revealed discussions are taking place about whether he will address the American public later today.The UK's Prime Minister, Boris Johnson, who was seriously ill with coronavirus in the intensive care unit of St Thomas's.