Vaccination for coronavirus disease 2019 in healthcare professionals: implication in the number of cases and adverse reactions

Objectives: To identify the number of cases of Coronavirus Disease 2019, before and after completing the vaccination schedule for Coronavirus Disease 2019, and the sociodemographic factors, adverse reactions to the vaccine and the professional's attitude towards social distancing. Methods: Observational retrospective cross-sectional study with a quantitative approach with health professionals vaccinated for Coronavirus Disease 2019 in 2021. Results: Before vaccination, 19.9% of professionals reported a positive result for coronavirus 2019 and, after the application of the second dose of the vaccine, 7.7% reported positive cases of the virus. It was observed that 50% of post-vaccination Coronavirus Disease 2019 cases were identified in professionals from sectors exclusively caring for patients with Coronavirus Disease 2019. The main adverse effects of the vaccines were: headache, body pain and fatigue. Conclusion: After vaccination, there was a reduction in the number of Coronavirus Disease 2019 cases among professionals. However, in addition to vaccination, other preventive measures must be maintained in situations of greater risk of contamination. (AU)