Live updates: Confirmed coronavirus cases in the U.S. double in two days

Here are significant developments:

• Italy on Thursday hit a grim milestone, surpassing China for the largest number of coronavirus-related deaths, at 3,405.
• President Trump repeated an incorrect claim that the Food and Drug Administration had approved a malaria drug to fight the coronavirus.
• India barred incoming commercial flights for a week, and Australia and New Zealand closed their borders to everyone except citizens and residents. The United Arab Emirates went further, stopping expatriate residents from returning to the country. Meanwhile, Italy is extending lockdown measures.
• Prince Albert of Monaco has tested positive for the coronavirus. That announcement came hours after the European Union’s top Brexit negotiator, Michel Barnier, said he had tested positive. U.S. Reps. Ben McAdams (D-Utah) and Mario Diaz-Balart (R-Fla.) both announced positive tests, as well; they are the first confirmed cases in Congress.
• The European Central Bank announced an $820 billion emergency bond-buying program as President Trump and congressional leaders planned a $1 trillion stimulus package, including special assistance for small businesses and airlines. Trump also signed into a law a bill to ensure paid-leave benefits for many Americans.