• Lisa B Puglisi, Giovanni S P Malloy, Tyler D Harvey, Margaret L Brandeau, and Emily A Wang.
• SEICHE Center for Health and Justice, Yale School of Medicine, New Haven, CT; Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT; VA Connecticut Healthcare System, West Haven, CT. Electronic address: lisa.puglisi@yale.edu.
• Ann Epidemiol. 2021 Jan 1; 53: 103-105.

PurposeTo estimate the basic reproduction ratio () of SARS-CoV-2 inside a correctional facility early in the COVID-19 pandemic.MethodsWe developed a dynamic transmission model for a large, urban jail in the United States. We used the next generation method to determine the basic reproduction ratio We included anonymized data of incarcerated individuals and correctional staff with confirmed COVID-19 infections in our estimation of the basic reproduction ratio () of SARS-CoV-2.ResultsThe estimated is 8.44 (95% Credible Interval (CrI): 5.00-13.13) for the entire jail.ConclusionsThe high of SARS-CoV-2 in a large urban jail highlights the importance of including correctional facilities in public health strategies for COVID-19. In the absence of more aggressive mitigation strategies, correctional facilities will continue to contribute to community infections.Published by Elsevier Inc.

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