Mitigating a COVID-19 outbreak among Major League Baseball players - United States, 2020 - Murray, M. T.; Riggs, M. A.; Engelthaler, D. M.; Johnson, C.; Watkins, S.; Longenberger, A.; Brett-Major, D. M.; Lowe, J.; Broadhurst, M. J.; Ladva, C. N.; Villanueva, J. M.; MacNeil, A.; et al. (MMWR Morbidity Mortal Weekly Report, 2020)