Laboratory scientist Andrea Luquette cultures coronavirus to prepare for testing at U.S. Army Medical Research and Development Command at Fort Detrick in Frederick, Md., Thursday, March 19, 2020, where scientists are working to help develop solutions to prevent, detect and treat the coronavirus. (AP Photo/Andrew Harnik)
US President Donald J. Trump holds a press briefing on the Coronavirus COVID-19 pandemic with members of the Coronavirus Task Force at the White House in Washington, DC, USA, 19 March 2020. EPA/Yuri Gripas / POOL