key: cord-0928743-4yvufo8w authors: Iliaki, Eirini; Lan, Fan-Yun; Christophi, Costas A.; Guidotti, Guido; Jobrack, Alexander D.; Buley, Jane; Nathan, Neetha; Osgood, Rebecca; Bruno-Murtha, Lou Ann; Kales, Stefanos N. title: COVID-19 Vaccine Efficacy in a Diverse Urban Healthcare Worker Population date: 2021-10-19 journal: Mayo Clin Proc DOI: 10.1016/j.mayocp.2021.10.005 sha: 857f21083761600856f3122ff84a82afb8f7b689 doc_id: 928743 cord_uid: 4yvufo8w nan "Hawaiian or Pacific Islander", or "Two or More" were pooled into one level "other race". Interim estimates of vaccine effectiveness of BNT162b2 and mRNA-1273 COVID-19 vaccines in preventing SARS-CoV-2 infection among health care personnel, first responders, and other essential and frontline workers -Eight U.S. locations Effectiveness of mRNA COVID-19 vaccines against SARS-CoV-2 infection in a cohort of healthcare personnel Sociodemographic risk factors for coronavirus disease 2019 (COVID-19) infection among Massachusetts healthcare workers: A retrospective cohort study COVID-19 symptoms predictive of healthcare workers' SARS-CoV-2 PCR results Massachusetts Department of Public Health. Archive of COVID-19 cases in