It has been announced that Major League Baseball will be participating this week in a massive coronavirus antibody study. Researchers are hoping results will show a better understanding of the spread of the virus. The antibody test, which detects whether a person contracted coronavirus regardless of symptoms, is not taking away the ability to be tested for the disease from the sick or healthcare workers. It is typically used for research and epidemiological purposes.
Also of note, it will not help determine whether MLB can return any sooner. MLB was among a number of companies considered for the testing.