https://www.brighamandwomens.org/about-bwh/newsroom/press-releases-detail?id=3608 After Universal Masking, Health Care Worker COVID-19 Infection Rates Dropped at Mass General Brigham Even as cases rose in Massachusetts, the rate of positive tests among employees went down significantly after all were required to wear surgical masks Boston, MA — In March of 2020, Mass General Brigham implemented a new policy: everyone working at the hospitals would be required to…