Cross-sectional seroprevalence surveys of SARS-CoV-2 antibodies in children in Germany, June 2020 to May 2021

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作者
Anna-Lisa Sorg
Leon Bergfeld
Marietta Jank
Victor Corman
Ilia Semmler
Anna Goertz
Andreas Beyerlein
Eva Verjans
Norbert Wagner
Horst Von Bernuth
Fabian Lander
Katharina Weil
Markus Hufnagel
Ute Spiekerkoetter
Cho-Ming Chao
Lutz Naehrlich
Ania Carolina Muntau
Ulf Schulze-Sturm
Gesine Hansen
Martin Wetzke
Anna-Maria Jung
Tim Niehues
Susanne Fricke-Otto
Ulrich Von Both
Johannes Huebner
Uta Behrends
Johannes G. Liese
Christian Schwerk
Christian Drosten
Ruediger Von Kries
Horst Schroten
机构
[1] Ludwig-Maximilians-University Munich,Institute of Social Paediatrics and Adolescent Medicine, Division of Paediatric Epidemiology
[2] University Children’s Hospital,Institute of Virology
[3] Eberhard Karls University,Department of Paediatrics, Medical Faculty
[4] Charité Universitätsmedizin Berlin,Department of Paediatric Respiratory Medicine, Immunology, and Critical Care Medicine
[5] Paediatric Infectious Diseases,Department of Paediatrics
[6] Department of Paediatrics,Department of General Paediatrics, Neonatology, and Paediatric Cardiology, Medical Faculty
[7] Medical Faculty Mannheim,Department of Paediatrics and Adolescent Medicine
[8] Heidelberg University,Centre for Paediatrics and Adolescent Medicine, Hannover Medical School
[9] University Hospital RWTH Aachen,Department of General Paediatrics, Neonatology, Children’s Hospital Medical Centre
[10] Charité Universitätsmedizin Berlin,Department of Paediatrics
[11] University Hospital,Dr von Hauner Children’s Hospital
[12] and Medical Faculty Carl Gustav Carus,Department of Paediatrics, Faculty of Medicine
[13] Technical University (TU) Dresden,undefined
[14] University Hospital,undefined
[15] Heinrich-Heine-University Düsseldorf,undefined
[16] University Medical Centre,undefined
[17] Medical Faculty,undefined
[18] University of Freiburg,undefined
[19] University Medical Centre Rostock,undefined
[20] Department of Paediatrics,undefined
[21] University of Rostock,undefined
[22] Universities of Giessen and Marburg Lung Centre,undefined
[23] German Centre of Lung Research,undefined
[24] Department of Paediatrics,undefined
[25] Justus-Liebig-University Giessen,undefined
[26] University Children’s Hospital,undefined
[27] University Medical Centre Hamburg- Eppendorf,undefined
[28] Excellence Cluster RESIST,undefined
[29] Deutsche Forschungsgemeinschaft (DFG),undefined
[30] Saarland University Hospital,undefined
[31] Helios Klinikum Krefeld,undefined
[32] University Hospital,undefined
[33] Ludwig-Maximilians-University,undefined
[34] Technical University Munich,undefined
[35] University Hospital of Wuerzburg,undefined
[36] Department of Paediatrics,undefined
[37] Division of Paediatric Infectious Diseases,undefined
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摘要
The rate of SARS-CoV-2 infections in children remains unclear due to many asymptomatic cases. We present a study of cross-sectional seroprevalence surveys of anti-SARS-CoV-2 IgG in 10,358 children recruited in paediatric hospitals across Germany from June 2020 to May 2021. Seropositivity increased from 2.0% (95% CI 1.6, 2.5) to 10.8% (95% CI 8.7, 12.9) in March 2021 with little change up to May 2021. Rates increased by migrant background (2.8%, 4.4% and 7.8% for no, one and two parents born outside Germany). Children under three were initially 3.6 (95% CI 2.3, 5.7) times more likely to be seropositive with levels equalising later. The ratio of seropositive cases per recalled infection decreased from 8.6 to 2.8. Since seropositivity exceeds the rate of recalled infections considerably, serologic testing may provide a more valid estimate of infections, which is required to assess both the spread and the risk for severe outcomes of SARS-CoV-2 infections.
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