This study aimed to estimate the seroprevalence of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection within the staff and student populations of the University of Corsica (France) during the second wave of the epidemic. Methods: A cross-sectional survey was conducted from 23 November 2020 to 31 January 2021. The participants underwent blood sampling using a fingerstick procedure and completed an anonymized questionnaire. Sera were tested for the presence of anti-SARS-CoV-2 IgG (ELISA-S) and, if positive, with an in-house virus neutralization test (VNT). Results: A total of 418 persons were included in the study. The overall seroprevalence was 12.8% (95% confidence interval (CI), 9.8–16.6%). A total of 15 (31%) of the 49 individuals who had a positive ELISA-S also had a positive VNT. Seropositivity was associated with living at the city campus during the week and on weekends (OR = 3.74 [1.40–12.00]), using public transportation/carpooling (OR = 2.00 [1.01–4.02]), and being in contact with a person who tested positive for SARS-CoV-2 (OR = 2.32 [1.20–4.40]). The main symptoms associated with seropositivity were “having had an acute respiratory infection” (OR = 3.05 [1.43–6.43]) and “experiencing loss of smell” (OR = 16.4 [5.87–50.7]). Conclusion: These results could be useful for SARS-CoV-2 prevention and control on university campuses.
【저자키워드】 antibodies, SARS-CoV-2, Seroprevalence, ELISA, seroneutralization, 【초록키워드】 Seroprevalence, Infection, severe acute respiratory syndrome coronavirus-2, Symptom, severe acute respiratory syndrome Coronavirus, ELISA, Population, respiratory infection, anti-SARS-CoV-2 IgG, sera, virus neutralization test, neutralization test, France, Seropositivity, Acute respiratory infection, second wave, university, questionnaire, Blood, Prevention and control, Coronavirus-2, Contact, cross-sectional survey, contact with, Loss of Smell, acute respiratory syndrome, acute respiratory syndrome coronavirus, 95% confidence interval, house, individual, acute respiratory syndrome coronavirus-2, participant, blood sampling, positive, Corsica, VNT, the epidemic, tested, conducted, 【제목키워드】 university, exposure, Factor, Wave, second, Sample, Seropositivity for SARS-CoV-2,