key: cord-309650-6xz9gjq0 authors: Chou, Roger; Dana, Tracy; Buckley, David I.; Selph, Shelley; Fu, Rongwei; Totten, Annette M. title: Update Alert 4: Epidemiology of and Risk Factors for Coronavirus Infection in Health Care Workers date: 2020-09-11 journal: Ann Intern Med DOI: 10.7326/l20-1134 sha: doc_id: 309650 cord_uid: 6xz9gjq0 nan 48% participation rate; no information on clinical outcomes of SARS-CoV-2 infection el-Boghdadly et al, 2020 (22) Prospective cohort Multinational ( 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. Female vs. male (IgG): OR, 0.58 (0.20-1.67) IgG: 14.8% (7/115) IgG: 7.8% (5/64) Nurse vs /105) Nurse vs. physician: OR, 0.49 (0.15-1.55) Radiology technician: 29.4% (5/17) Other HCW role: 2.4% (1/41) 29 y: 2.3% (2/88) Epidemiology of and risk factors for coronavirus infection in health care workers Update Alert 2: Epidemiology of and risk factors for coronavirus infection in health care workers Low seroprevalence of SARS-CoV-2 infection among healthcare workers of the largest children hospital in Milan during the pandemic wave Efficacy of a test-retest strategy in residents and health care personnel of a nursing home facing a COVID-19 outbreak Large-scale, molecular and serological SARS-CoV-2 screening of healthcare workers in a 4-site public hospital in Belgium after COVID-19 outbreak Specific risk factors for SARS-CoV-2 transmission among health care workers in a university hospital Seroprevalence of SARS-CoV-2 antibodies in healthcare workers at a London NHS Trust Pandemic peak SARS-CoV-2 infection and seroconversion rates in London frontline health-care workers Seroprevalence of severe acute respiratory coronavirus virus 2 (SARS-CoV-2) antibodies among healthcare workers with differing levels of coronavirus disease 2019 (COVID-19) patient exposure Prevalence of SARS-CoV-2 infection among health care workers in a tertiary community hospital SARS-CoV-2 infection among healthcare workers of a gastroenterological service in a tertiary care facility Infection with SARS-CoV-2 in primary care health care workers assessed by antibody testing Prevalence of SARS-CoV-2 antibodies in health care personnel in the New York City area Search for asymptomatic carriers of SARS-CoV-2 in healthcare workers during the pandemic: a Spanish experience COVID-19 outbreak in healthcare workers in Trieste hospitals SARS-CoV-2 specific serological pattern in healthcare workers of an Italian COVID-19 forefront hospital COVID-19 screening for healthcare workers in a tertiary infectious diseases referral hospital in Manila, the Philippines The role of isolation rooms, facemasks and intensified hand hygiene in the prevention of nosocomial COVID-19 transmission in a pulmonary clinical setting Asymptomatic infection by SARS-CoV-2 in healthcare workers: a study in a large teaching hospital in Wuhan, China Update Alert: epidemiology of and risk factors for coronavirus infection in health care workers Update Alert 3: epidemiology of and risk factors for coronavirus infection in health care workers Risks to healthcare workers following tracheal intubation of patients with COVID-19: a prospective international multicentre cohort study SARS-CoV-2 infection in healthcare personnel with highrisk occupational exposure: evaluation of seven-day exclusion from work policy Dynamic of SARS-CoV-2 RT-PCR positivity and seroprevalence among high-risk health care workers and hospital staff Occupation and risk of COVID-19: prospective cohort study of 120,621 UK Biobank participants Risk of COVID-19 among frontline healthcare workers and the general community: a prospective cohort study. 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