Evidence map›Paper›PMID 36345616›Full record

ArticleDeutsches Arzteblatt international2022

SARS-CoV-2 Seroprevalence in Preschool and School-Age Children—Population Screening Findings From January 2020 to June 2022

Raffael Ott, Peter Achenbach, Dominik A Ewald, Nadine Friedl, Gita Gemulla, Michael Hubmann, Olga Kordonouri, Anja Loff, Erika Marquardt, Philipp Sifft and 3 more

Open access · greenAbstract read
In one paragraph

Article in Deutsches Arzteblatt international, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.1field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 21 citations in OpenAlex.

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  17. Seroprevalence of Anti-SARS-CoV-2 Antibodies Following the Omicron BA.1 Wave.International journal of environmental research and public health · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 1 institution in 1 country.

Raffael OttInstitute of Diabetes Research, Helmholtz Munich, German Research Center for Environmental Health, Munich; Forschergruppe Diabetes e.V. at Helmholtz Munich; Technical University Munich, School of Medicine, Forschergruppe Diabetes at Klinikum Rechts der Isar, Munich, Germany; Practice for Pediatric Medicine, Regensburg Department of Pediatrics, University Hospital and Faculty of Medicine, Technical University of Dresden; Center for Regenerative Therapies Dresden, Faculty of Medicine, Technical University of Dresden; Practice for Pediatric Medicine, Zirndorf; Auf der Bult Pediatric Hospital, Hanover.
Peter Achenbach
Dominik A Ewald
Nadine Friedl
Gita Gemulla
Michael Hubmann
Olga Kordonouri
Anja Loff
Erika Marquardt
Philipp Sifft
Melanie Sporreiter
Jose Zapardiel-Gonzalo
Anette-G Ziegler
German Center for Diabetes Research · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe SARS-CoV-2 pandemic is ongoing in Germany. Children and adolescents are increasingly being infected, and many cases presumably remain undetected and unreported. Sero-epidemiological studies can help estimate the true number of infections.

methodsFrom January 2020 to June 2022, 59 786 persons aged 1-17 years were tested for SARS-CoV-2 antibodies as part of a screening program for presymptomatic type 1 diabetes in the German federal state of Bavaria (the Fr1da study).

resultsIn June 2022, the seroprevalence in the overall population was 73.5%. The seroprevalence was significantly higher in school-age children (from 5 to 10 years of age) than in preschool children (ages 1-4): 84.4% vs. 66.6%, p <0.001. In contrast, in November 2021, before the appearance of the omicron variant, the overall seroprevalence was 14.7% (16.2% of school-age children, 13.0% of preschool children, p = 0.06). In the overall collective, seroprevalence increased fivefold from the fall of 2021 to June 2022 (by a factor of 5.2 in school-age children and 5.1 in preschool children). Similar seroprevalences, with smaller case numbers, were observed in June 2022 in the corresponding Fr1da studies in Saxony and Northern Germany: 87.8% and 76.7%, respectively.

conclusionMonthly case counts reveal a substantial rise in SARS-CoV-2-infections among children and adolescents from late 2021 to mid-2022. The high percentage of preschool and school-age children who have been infected with SARS-CoV-2, in a population that has low vaccination coverage, should be taken into account in the development of health policies.

Indexed as

COVID-19SARS-CoV-2AdolescentChildChild, PreschoolEducational StatusHumansSeroepidemiologic Studies

Identifiers

PMID36345616
PMCPMC9884841
OpenAlexW4307243729

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.