Prevalence of COVID-19 infection by positive serology (IgG/IgM) in medical personnel of the Chair and Service of Otorhinolaryngology of the Hospital de Clínicas

Abstract

Introduction: Otolaryngology personnel have a high exposure to SARS-CoV-2 virus due to the procedures they perform. It is essential to take appropriate protective measures. Deter- mining seroprevalence will give us a better picture of exposure, contagion and effectiveness of protective measures adopted. Aim: To determine the prevalence of positive serological re- sults in medical staff serving in the otolaryngology department from March 2020 to March 2021. Material and Method: Observational, descriptive, cross-sectional, retrospective, retrospective study with cross-association. Non-probability sampling of consecutive cases. The total population was 38 physicians of the Otolaryngology Service of the Hospital de Clinicas. Results: The mean age was 37.4. 63.5% reported having seen a patient known to be a COVID-19 carrier, while 42% reported not having complied with all personal protec- tion measures. A 23.68% of the study subjects tested positive for IgG, interpreting previous COVID-19 infection. Conclusion: More than two-thirds of the physicians referred to giving consultation to COVID-19 positive patients. Almost a quarter of the physicians were positi- ve for COVID-19 according to the Anti-N serology test. No association was found between consultation or surgery of patients with COVID-19 and infection of medical personnel.