(Undated)  -- According to ESPN, 60 of over 57-hundred MLB employees tested positive for coronavirus antibodies.  The study was held in mid-April and showed a prevalence in the employee population of 0.7 percent.  70 percent of those who had antibodies also were asymptomatic.  26 of the 30 teams participated in the study.  The Arizona Diamondbacks delivered the most samples in the study with 362.