The coronavirus threatened Americans with their hardest week in memory on Monday and put Britain’s prime minister in hospital, despite early signs that some of Europe’s hardest-hit countries may be turning a corner. Japan announced an imminent state of emergency and a trillion-dollar stimulus package, after the US surgeon general compared the likely impact of the epidemic in the week ahead to 9/11 or Pearl Harbor. In London, virus-stricken Prime Minister Boris Johnson spent the night in hospital for tests, after Queen Elizabeth II delivered a rare emergency address in a 68-year reign to urge Britain to “remain united and resolute”.
