References
- Calcagno A, Ghisetti V, Emanuele T, et al. Risk for SARS-CoV-2 infection in healthcare workers, turin, Italy. Emerg Infect Dis. 2021;27(1):303–305.
- Shah AV, Wood R, Gribben C, et al. Risk of hospital admission with coronavirus disease 2019 in healthcare workers and their households: nationwide linkage cohort study. BMJ. 2020;371:m3582.
- Pan A, Liu L, Wang C, et al. Association of public health interventions with the epidemiology of the COVID-19 outbreak in Wuhan, China. JAMA. 2020;323(19):1915–1923.
- Houlihan CF, Vora N, Byrne T, et al. Pandemic peak SARS-CoV-2 infection and seroconversion rates in London frontline health-care workers. Lancet. 2020;396(10246):e6–e7.
- Iversen K, Bundgaard H, Hasselbalch RB, et al. Risk of COVID-19 in health-care workers in Denmark: an observational cohort study. Lancet Infect Dis. 2020;20(12):1401–1408.
- Steensels D, Oris E, Coninx L, et al. Hospital-Wide SARS-CoV-2 antibody screening in 3056 staff in a tertiary center in Belgium. JAMA. 2020;324(2):195–197.
- Jacob JT, Baker JM, Fridkin SK, et al. Risk factors associated with SARS-CoV-2 seropositivity among US health care personnel. JAMA Netw Open. 2021;4(3):e211283.
- COVID-19 situation update for the EU/EEA, as of 10 Sep 2021. Solna (Sweden): European Centre for Disease Prevention and Control; 2021 [cited 2021 Sep 12]. Available from: https://www.ecdc.europa.eu/en/cases-2019-ncov-eueea.
- Situation update on coronavirus - infectious diseases and vaccinations - THL. Helsinki (Finland): Finnish Institute for Health and Welfare; 2021 [cited 2021 Sep 12]. Available from: https://thl.fi/en/web/infectious-diseases-and-vaccinations/what-s-new/coronavirus-covid-19-latest-updates/situation-update-on-coronavirus#Coronavirus_situation.
- Jalkanen P, Pasternack A, Maljanen S, et al. A combination of N and S antigens with IgA and IgG measurement strengthens the accuracy of SARS-CoV-2 serodiagnostics. J Infect Dis. 2021;224(2):218–228.
- Jalkanen P, Kolehmainen P, Häkkinen HK, et al. COVID-19 mRNA vaccine induced antibody responses against three SARS-CoV-2 variants. Nat Commun. 2021;12(1):3991.
- Röltgen K, Powell AE, Wirtz O, et al. Defining the features and duration of antibody responses to SARS-CoV-2 infection associated with disease severity and outcome. Sci Immunol. 2020;5(54):eabe0240.
- Wei J, Matthews PC, Stoesser N, et al. Anti-spike antibody response to natural SARS-CoV-2 infection in the general population. Nat Commun. 2021;12(1):6250.
- Petersen LR, Sami S, Vuong N, et al. Lack of antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in a large cohort of previously infected persons. Clin Infect Dis. 2021;73(9):e3066–e3073.
- Egia-Mendikute L, Bosch A, Prieto-Fernández E, et al. Sensitive detection of SARS-CoV-2 seroconversion by flow cytometry reveals the presence of nucleoprotein-reactive antibodies in unexposed individuals. Commun Biol. 2021;4(1):486.
- Ren L, Zhang L, Chang D, et al. The kinetics of humoral response and its relationship with the disease severity in COVID-19. Commun Biol. 2020;3(1):780.