Household Severe Acute Respiratory Syndrome Coronavirus 2 Transmission and Children : A Network Prospective Study
© 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: The role of children in household transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) remains unclear. We describe the epidemiological and clinical characteristics of children with coronavirus disease 2019 (COVID-19) in Catalonia, Spain, and investigate the household transmission dynamics.
METHODS: A prospective, observational, multicenter study was performed during summer and school periods (1 July 2020-31 October 2020) to analyze epidemiological and clinical features and viral household transmission dynamics in COVID-19 patients aged <16 years. A pediatric index case was established when a child was the first individual infected. Secondary cases were defined when another household member tested positive for SARS-CoV-2 before the child. The secondary attack rate (SAR) was calculated, and logistic regression was used to assess associations between transmission risk factors and SARS-CoV-2 infection.
RESULTS: The study included 1040 COVID-19 patients. Almost half (47.2%) were asymptomatic, 10.8% had comorbidities, and 2.6% required hospitalization. No deaths were reported. Viral transmission was common among household members (62.3%). More than 70% (756/1040) of pediatric cases were secondary to an adult, whereas 7.7% (80/1040) were index cases. The SAR was significantly lower in households with COVID-19 pediatric index cases during the school period relative to summer (P = .02) and compared to adults (P = .006). No individual or environmental risk factors associated with the SAR.
CONCLUSIONS: Children are unlikely to cause household COVID-19 clusters or be major drivers of the pandemic, even if attending school. Interventions aimed at children are expected to have a small impact on reducing SARS-CoV-2 transmission.
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:73 |
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| Enthalten in: |
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America - 73(2021), 6 vom: 15. Sept., Seite e1261-e1269 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Soriano-Arandes, Antoni [VerfasserIn] |
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| Links: |
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| Themen: |
Child |
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| Anmerkungen: |
Date Completed 23.09.2021 Date Revised 11.03.2022 published: Print CommentIn: Clin Infect Dis. 2021 Jun 18;:. - PMID 34145451 Citation Status MEDLINE |
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| doi: |
10.1093/cid/ciab228 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM322660203 |
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| 500 | |a published: Print | ||
| 500 | |a CommentIn: Clin Infect Dis. 2021 Jun 18;:. - PMID 34145451 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 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. | ||
| 520 | |a BACKGROUND: The role of children in household transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) remains unclear. We describe the epidemiological and clinical characteristics of children with coronavirus disease 2019 (COVID-19) in Catalonia, Spain, and investigate the household transmission dynamics | ||
| 520 | |a METHODS: A prospective, observational, multicenter study was performed during summer and school periods (1 July 2020-31 October 2020) to analyze epidemiological and clinical features and viral household transmission dynamics in COVID-19 patients aged <16 years. A pediatric index case was established when a child was the first individual infected. Secondary cases were defined when another household member tested positive for SARS-CoV-2 before the child. The secondary attack rate (SAR) was calculated, and logistic regression was used to assess associations between transmission risk factors and SARS-CoV-2 infection | ||
| 520 | |a RESULTS: The study included 1040 COVID-19 patients. Almost half (47.2%) were asymptomatic, 10.8% had comorbidities, and 2.6% required hospitalization. No deaths were reported. Viral transmission was common among household members (62.3%). More than 70% (756/1040) of pediatric cases were secondary to an adult, whereas 7.7% (80/1040) were index cases. The SAR was significantly lower in households with COVID-19 pediatric index cases during the school period relative to summer (P = .02) and compared to adults (P = .006). No individual or environmental risk factors associated with the SAR | ||
| 520 | |a CONCLUSIONS: Children are unlikely to cause household COVID-19 clusters or be major drivers of the pandemic, even if attending school. Interventions aimed at children are expected to have a small impact on reducing SARS-CoV-2 transmission | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a SARS-CoV-2 | |
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