MLB players and team employees are participating in a large-scale COVID-19 study run by Stanford University, USC and the Sports Medicine Research and Testing Laboratory that will test up to 10,000 people for coronavirus antibodies and could potentially offer researchers more information regarding the spread of the disease, according to ESPN's Jeff Passan.
Per ESPN, the study will employ test kits that draw blood via pinprick and offer results within 10 minutes. A positive test would confirm if a person did in fact contract the coronavirus.
Doctors running the study told ESPN that the speed in which MLB ensured participation from people throughout the sport made it "the right choice for the study.