key: cord-0828701-bdddjapj authors: Chou, Roger; Dana, Tracy; Buckley, David I.; Selph, Shelley; Fu, Rongwei; Totten, Annette M. title: Update Alert 6: Epidemiology of and Risk Factors for Coronavirus Infection in Health Care Workers date: 2020-11-24 journal: Ann Intern Med DOI: 10.7326/l20-1323 sha: 02648f03ba8d9eac28344e4b8155f97252650ca6 doc_id: 828701 cord_uid: bdddjapj nan Abbreviations: ED = emergency department; HCW = healthcare worker; HR = hazard ratio; ICU = intensive care unit; NICO = neonatal intensive care unit; OR = odds ratio; PCR = polymerase chain reaction; PICU = pediatric intensive care unit; PPE = personal protective equipment; RR = relative risk *Unadjusted OR calculated based on available data. 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