The COVID-19 Sentinel Schools Network of Catalonia (CSSNC) project : Associated factors to prevalence and incidence of SARS-CoV-2 infection in educational settings during the 2020-2021 academic year
Ganem dos Santos, Fabiana Sherine (Universitat Autònoma de Barcelona. Departament de Pediatria, Obstetrícia i Ginecologia i Medicina Preventiva i Salut Pública)
Bordas, Anna (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Folch, Cinta (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Alonso García, Lucía (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Montoro-Fernandez, Marcos (Institut Germans Trias i Pujol. Centre d'Estudis Epidemiològics sobre les Infeccions de Transmissió Sexual i Sida de Catalunya)
Colom Cadena, Andreu (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Mas, Ariadna (Institut Català de la Salut)
Mendioroz Peña, Jacobo (Agència de Salut Pública de Catalunya)
Asso, Laia (Generalitat de Catalunya. Departament de Salut)
Antón, Andrés (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Pumarola Suñé, Tomàs (Hospital Universitari Vall d'Hebron. Institut de Recerca)
González, Maria Victoria (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Blanco Guillermo, Ignacio (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Soler-Palacín, Pere (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Soriano-Arandes, Antoni (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Casabona-Barbarà, Jordi (Universitat Autònoma de Barcelona. Departament de Pediatria, Obstetrícia i Ginecologia i Medicina Preventiva i Salut Pública)

Date:	2022
Abstract:	The Sentinel Schools project was designed to monitor and evaluate the epidemiology of COVID-19 in Catalonia, gathering evidence for health and education policies to inform the development of health protocols and public health interventions to control of SARS-CoV-2 infection in schools. The aim of this study was to estimate the prevalence and incidence of SARS-CoV-2 infections and to identify their determinants among students and staff during February to June in the academic year 2020-2021. We performed two complementary studies, a cross-sectional and a longitudinal component, using a questionnaire to collect nominal data and testing for SARS-CoV-2 detection. We describe the results and perform a univariate and multivariate analysis. The initial crude seroprevalence was 14. 8% (95% CI: 13. 1-16. 5) and 22% (95% CI: 18. 3-25. 8) for students and staff respectively, and the active infection prevalence was 0. 7% (95% CI: 0. 3-1) and 1. 1% (95% CI: 0. 1-2). The overall incidence for persons at risk was 2. 73 per 100 person-month and 2. 89 and 2. 34 per 100 person-month for students and staff, respectively. Socioeconomic, self-reported knowledge, risk perceptions and contact pattern variables were positively associated with the outcome while sanitary measure compliance was negatively associated, the same significance trend was observed in multivariate analysis. In the longitudinal component, epidemiological close contact with SARS-CoV-2 infection was a risk factor for SARS-CoV-2 infection while the highest socioeconomic status level was protective as was compliance with sanitary measures. The small number of active cases detected in these schools suggests a low transmission among children in school and the efficacy of public health measures implemented, at least in the epidemiological scenario of the study period. The major contribution of this study was to provide results and evidence that help analyze the transmission dynamic of SARS-CoV-2 and evaluate the associations between sanitary protocols implemented, and measures to avoid SARS-CoV-2 spread in schools.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	PloS one, Vol. 17 (november 2022) , ISSN 1932-6203

DOI: 10.1371/journal.pone.0277764
PMID: 36395191

23 p, 937.1 KB

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