Clin Infect Dis. 2020 Sep 8:ciaa1358. doi: 10.1093/cid/ciaa1358. Online ahead of print.
We describe the impact of universal masking and universal testing at admission on high risk exposures to SARS-CoV-2 for healthcare workers. Universal masking decreased the rate per patient day of high risk exposures by 68%, and universal testing further decreased those exposures by 77%.