Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 Infection Among Children in Summer Schools Applying Stringent Control Measures in Barcelona, Spain

© The Author(s) 2021. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail: journals.permissionsoup.com..

BACKGROUND: Understanding the role of children in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission is critical to guide decision-making for schools in the pandemic. We aimed to describe the transmission of SARS-CoV-2 among children and adult staff in summer schools.

METHODS: During July 2020, we prospectively recruited children and adult staff attending summer schools in Barcelona who had SARS-CoV-2 infection. Primary SARS-CoV-2 infections were identified through (1) a surveillance program in 22 summer schools of 1905 participants, involving weekly saliva sampling for SARS-CoV-2 reverse-transcription polymerase chain reaction (RT-PCR) during 2-5 weeks; and (2) cases identified through the Catalonian Health Surveillance System of children diagnosed with SARS-CoV-2 infection by nasopharyngeal RT-PCR. All centers followed prevention protocols: bubble groups, handwashing, face masks, and conducting activities mostly outdoors. Contacts of a primary case within the same bubble were evaluated by nasopharyngeal RT-PCR. Secondary attack rates and the effective reproduction number in summer schools (Re*) were calculated.

RESULTS: Among the >2000 repeatedly screened participants, 30 children and 9 adults were identified as primary cases. A total of 253 close contacts of these primary cases were studied (median, 9 [interquartile range, 5-10] for each primary case), among which 12 new cases (4.7%) were positive for SARS-CoV-2. The Re* was 0.3, whereas the contemporary rate in the general population from the same areas in Barcelona was 1.9.

CONCLUSIONS: The transmission rate of SARS-CoV-2 infection among children attending school-like facilities under strict prevention measures was lower than that reported for the general population. This suggests that under preventive measures schools are unlikely amplifiers of SARS-CoV-2 transmission, supporting current recommendations for school opening.

Media Type:

Electronic Article

Year of Publication:

2022

Publication:

2022

Contained In:

To Main Record - volume:74

Contained In:

Clinical infectious diseases : an official publication of the Infectious Diseases Society of America - 74(2022), 1 vom: 07. Jan., Seite 66-73

Language:

English

Contributors:

Jordan, Iolanda [Author]
Fernandez de Sevilla, Mariona [Author]
Fumado, Victoria [Author]
Bassat, Quique [Author]
Bonet-Carne, Elisenda [Author]
Fortuny, Claudia [Author]
Garcia-Miquel, Aleix [Author]
Jou, Cristina [Author]
Adroher, Cristina [Author]
Melé Casas, María [Author]
Girona-Alarcon, Mònica [Author]
Hernández Garcia, María [Author]
Pons Tomas, Gemma [Author]
Ajanovic, Sara [Author]
Arias, Sara [Author]
Balanza, Núria [Author]
Baro, Bárbara [Author]
Millat-Martinez, Pere [Author]
Varo, Rosauro [Author]
Alonso, Sergio [Author]
Álvarez-Lacalle, Enric [Author]
López, Daniel [Author]
Claverol, Joana [Author]
Cubells, Marta [Author]
Brotons, Pedro [Author]
Codina, Anna [Author]
Cuadras, Daniel [Author]
Bruijning-Verhagen, Patricia [Author]
Faust, Saul [Author]
Munro, Alasdair [Author]
Muñoz-Almagro, Carmen [Author]
Català, Martí [Author]
Prats, Clara [Author]
Garcia-Garcia, Juan José [Author]
Gratacós, Eduard [Author]

Links:

Volltext

Keywords:

COVID-19
Children
Journal Article
Research Support, Non-U.S. Gov't
SARS-CoV-2
Transmission

Notes:

Date Completed 14.01.2022

Date Revised 14.01.2022

published: Print

Citation Status MEDLINE

doi:

10.1093/cid/ciab227

funding:

Supporting institution / Project title:

PPN (Catalogue-ID):

NLM322660238