In March 2020, during the early days of the COVID-19 pandemic, National Commission on Correctional Health Care (NCCHC) partnered with researchers from the Harvard Kennedy School and Harvard Law School to develop and deploy a weekly survey (https://www.ncchc.org/study-ofcovid-19-in-correctional-facilities) of correctional facilities around the nation to collect information about how the disease was affecting them. The study collected data for approximately 9 weeks. All information was self-reported. The survey requested data on cases and testing among inmates and staff and offered the opportunity to share concerns, policies, procedures, and other information. Our effort was a real-time emergency public health initiative, designed to gather as much immediately available data as possible. The response was tremendous, with 514 unique facilities reporting data at least one time. The final survey received responses from 85 unique facilities. The survey closed on June 9, 2020, and as of that date, we have obtained cumulative data on 296,574 incarcerated persons, 55,848 correctional staff, and 12,239 correctional health staff. Participation was voluntary, so the sample is not a random sampling of jails and prisons. The responding facilities cover the United States and are primarily jails (70%), followed by prisons (20%), juvenile detention centers (5%), and other. During the entire reporting period, facilities reported 1,878 cases among the incarcerated (633/ 100,000), 865 cases among correctional officers (1,549/100,000), and 156 cases among health staff (1,275/100,000). Moving beyond basic prevalence, the data have revealed shortfalls in testing as well as racial and ethnic disparities, which I'll explore below. Screening and Testing At the time the surveys began in March, 93% of reporting facilities said they screened inmates at intake; over the course of the study that rose to 97%. Screening for those already incarcerated increased from 46% to 56%. Staff screening also increased, from 79% to 89%.