• Gabriela Salzano Silva, Georgia Oliveira Avila, Fernanda Nascimento Lubianca, João Pedro Neves Lubianca, Victória Marques de Medeiros Michelon, Diogo Pereira Kalil, Lorenzo Feldman Maestri, Arthur Dementshuk Lengler, Guilherme Pereira Lima, and José Faibes Lubianca Neto.
• Universidade Federal de Ciências da Saúde de Porto Alegre, School of Medicine - Porto Alegre (RS), Brazil.
• Rev Assoc Med Bras (1992). 2022 Feb 1; 68 (2): 206-211.

ObjectiveA multicentric, cross-sectional study was carried out to determine the prevalence and risk factors for Coronavirus disease 2019 in medical students and residents from four universities and affiliated hospitals in Brazil.MethodsA survey about contamination risk and symptoms was sent to all participants through email and WhatsApp. Prevalence was measured by the self-report of positive polymerase chain reaction or serological test. Univariate and multivariate analyses were performed, and odds ratio and 95% confidence interval were calculated.ResultsPrevalence of infection by Sars-CoV-2 was 14.9% (151/1011). The disease was more prevalent in residents and interns than in undergraduate students. Contact with an infected relative outside the hospital or with colleagues without using personal protective equipment was associated with higher contamination. Contact with patients without wearing goggles and higher weekly frequency of contact were the two factors independently associated with the infection by Coronavirus disease 2019 in the multivariate analysis.ConclusionsMedical students, interns, and residents have a higher prevalence of Coronavirus disease 2019 than the general population, in which the last two groups are significantly at higher risk. Contacting patients at a higher weekly frequency increases the risk for infection. The use of goggles should be reinforced when contacting patients.

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