MLB employees, including Mets and Yankees, to take part in nationwide coronavirus antibody study: reportUp to 10,000 people will be tested to help public health policy4/15/2020, 12:39 AMMar 9, 2020; Clearwater, Florida, USA; Major league baseballs sit atop the New York Yankees dugout during the third inning against the Philadelphia Phillies at Spectrum Field. Mandatory Credit: John David Mercer-USA TODAY Sports / John David Mercer