A large outbreak of COVID-19 linked to an end of term trip to Menorca (Spain) by secondary school students in summer 2021
Forcadell Díez, Lluís (Universitat Pompeu Fabra)
Rius i Gibert, Maria Cristina (Agència de Salut Pública de Barcelona)
Salobral, Raúl (Agència de Salut Pública de Barcelona)
Sánchez-Valdivia, Nacho (Agència de Salut Pública de Barcelona)
Mendioroz, Jacobo (Generalitat de Catalunya de Catalunya)
Godoy, Pere (Generalitat de Catalunya de Catalunya)
Badiella Jarque, Elisabet (Generalitat de Catalunya de Catalunya)
Ferrandiz-Mont, David (Generalitat de Catalunya de Catalunya)
Moreno Cervera, Daniel (Generalitat de Catalunya de Catalunya)
Jordan Suriñach, Berta (Generalitat de Catalunya de Catalunya)
Vilalta-Carrera, A. (Generalitat de Catalunya de Catalunya)
Guadalupe-Fernández, Víctor (Generalitat de Catalunya de Catalunya)
Mateo Basilio, Julia (Generalitat de Catalunya de Catalunya)
Farràs Tapiol, Sergi (Generalitat de Catalunya de Catalunya)
Pérez Albarracín, Glòria (Institut d'Investigació Biomèdica Sant Pau)
Universitat Autònoma de Barcelona

Data:	2023
Resum:	Background An outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) occurred in young people from Catalonia (Spain) who travelled to Menorca (Spain) in summer 2021. This outbreak appeared when governments relaxed Covid-19 preventive measures: the mask usage and the opening of nightlife. It was related to a super-disseminating mass event: Sant Joan festivities in Ciutadella. The aim of this article is to describe an outbreak of COVID-19 in young people aged 17-19 years from Catalonia travelling to Menorca. Methods This is an observational study of a COVID-19 outbreak. The study population comprised Catalonian youth aged 17-19 years who travelled to Menorca from 15 June to 10 July. Epidemiological descriptive indicators were obtained. Descriptive and geographical statistics were carried out. Bivariate Moran's I test was used to identify spatial autocorrelation between the place of residence and deprivation. The outbreak control method was based on identifying and stopping chains of transmission by implementing the test-trace-isolate-quarantine (TTIQ) strategy. Results We identified 515 confirmed cases infected in Menorca, 296 (57. 5%) in girls and 219 (42. 5%) in boys, with a total of 2,280 close contacts. Of them, 245 (10. 7%) were confirmed as cases. The cases were diagnosed between 15 June and 10 July. None of the persons with confirmed infection died or required hospitalisation. The attack rate was 27. 2%. There was an inverse relationship between deprivation and number of confirmed cases (p<0. 005), there were clusters of confirmed cases in the most socioeconomic favoured areas. Discussion The outbreak is related with young people from socioeconomic favoured areas who travelled to Menorca in summer 2021. Failure to comply with preventive measures in binge-drinking events and during holidays may have favoured SARS-CoV-2 transmission. The interauthority coordination and establishment of a clear line of leadership allowed continuous communication between institutions, which were key to managing this complex COVID-19 outbreak.
Drets:	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.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Adolescent ; COVID-19 ; Disease Outbreaks ; Female ; Humans ; Male ; SARS-CoV-2 ; Schools ; Spain ; Students
Publicat a:	PloS one, Vol. 18 Núm. 2 February (february 2023) , p. e0280614, ISSN 1932-6203

DOI: 10.1371/journal.pone.0280614
PMID: 36735702

16 p, 1.4 MB

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