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Loenenbach A, Markus I, Lehfeld AS, An der Heiden M, Haas W, Kiegele M, Ponzi A, Unger-Goldinger B, Weidenauer C, Schlosser H, Beile A, Buchholz U. SARS-CoV-2 variant B.1.1.7 susceptibility and infectiousness of children and adults deduced from investigations of childcare centre outbreaks, Germany, 2021. ACTA ACUST UNITED AC 2021; 26. [PMID: 34047274 PMCID: PMC8161729 DOI: 10.2807/1560-7917.es.2021.26.21.2100433] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We investigated three SARS-CoV-2 variant B.1.1.7 childcare centre and related household outbreaks. Despite group cohorting, cases occurred in almost all groups, i.e. also among persons without close contact. Children’s secondary attack rates (SAR) were similar to adults (childcare centres: 23% vs 30%; p = 0.15; households: 32% vs 39%; p = 0.27); child- and adult-induced household outbreaks also led to similar SAR. With the advent of B.1.1.7, susceptibility and infectiousness of children and adults seem to converge. Public health measures should be revisited accordingly.
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Affiliation(s)
- Anna Loenenbach
- These authors contributed equally to this article and share first authorship.,Department for Infectious Disease Epidemiology, Robert Koch-Institute, Berlin, Germany
| | - Inessa Markus
- These authors contributed equally to this article and share first authorship.,Department for Infectious Disease Epidemiology, Robert Koch-Institute, Berlin, Germany
| | - Ann-Sophie Lehfeld
- Department for Infectious Disease Epidemiology, Robert Koch-Institute, Berlin, Germany
| | | | - Walter Haas
- Department for Infectious Disease Epidemiology, Robert Koch-Institute, Berlin, Germany
| | - Maya Kiegele
- Local Health Authority Bergstraße/Hesse, Heppenheim, Germany.,Federal Office of Administration, Cologne, Germany
| | - André Ponzi
- Local Health Authority Bergstraße/Hesse, Heppenheim, Germany.,Federal Office of Administration, Cologne, Germany
| | | | | | - Helen Schlosser
- Local Health Authority Bergstraße/Hesse, Heppenheim, Germany
| | - Alexander Beile
- Local Health Authority Bergstraße/Hesse, Heppenheim, Germany
| | - Udo Buchholz
- Department for Infectious Disease Epidemiology, Robert Koch-Institute, Berlin, Germany
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