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Luis Miguel Osorio-Toro,1– 3 Diana Marcela Bonilla-Bonilla,1– 3 Jorge Enrique Daza-Arana,1,4 Juan Carlos Aristizábal,3 Juan Carlos Ávila-Valencia,3,4 Roberto Ramírez-Marmolejo1 1Internal Medicine Specialization Program, Department of Health, Universidad Santiago de Cali, Santiago de Cali Colombia; 2Genetics, Physiology, and Metabolism Research Group, Universidad Santiago de Cali, Santiago de Cali Colombia; 3Department of Research and Education, Clínica de Occidente SA, Santiago de Cali, Colombia; 4Health and Movement Research Group, Universidad Santiago de Cali, Santiago de Cali ColombiaCorrespondence: Jorge Enrique Daza-Arana, Specialization Program in Internal Medicine, Department of Health, Universidad Santiago de Cali, Calle 5 # 62-00, Santiago de Cali, Colombia, Tel +57 3108923676, Email jorge.daza01@usc.edu.coPurpose: This study aims to determine the seroprevalence of coronavirus disease (COVID-19) among health care workers and describe the associated sociodemographic and labor features.Patients and Methods: An observational study with an analytical component was conducted at a clinic in Cali, Colombia. The sample size was 708 health workers and they were selected by stratified random sampling. A Bayesian analysis was developed to determine the raw and adjusted prevalence. A Poisson regression model was used to estimate the prevalence ratios.Results: Overall seroprevalence of COVID-19 among healthcare workers was 29%. Miscellaneous services workers, healthcare, and administrative workers, was 38%, 33%, and 32%, respectively. Factors related to seropositivity were having a contact with a COVID-19 patient for > 120 minutes and being diagnosed with COVID-19 by laboratory tests.Conclusion: The present study shows a adjusted seroprevalence of 29% in health workers, indicating a high level of disease transmission and an increased risk of infection in this population group.Keywords: antibodies, seroprevalence, SARS-CoV-2, health care workers, epidemiology |
