Evidence map›Paper›PMID 35191825›Full record

ArticleDeutsches Arzteblatt international2021

SARS-CoV-2 Seroprevalence in Germany.

Daniela Gornyk, Manuela Harries, Stephan Glöckner, Monika Strengert, Tobias Kerrinnes, Jana-Kristin Heise, Henrike Maaß, Julia Ortmann, Barbora Kessel, Yvonne Kemmling and 2 more

Abstract read
In one paragraph

Article in Deutsches Arzteblatt international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

43 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Dynamics of SARS-CoV-2 seroassay sensitivity: a systematic review and modelling study.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2023
    Pooled it
  2. Article
  3. Population-based prevalence and screening gaps of hepatitis C, B and D, Germany, 2020 to 2021.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2026
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  19. Antibody Binding and Angiotensin-Converting Enzyme 2 Binding Inhibition Is Significantly Reduced for Both the BA.1 and BA.2 Omicron Variants.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Daniela GornykDepartment of Epidemiology, Helmholtz Center for Infection Research, Braunschweig; RNA Biology of Bacterial Infections, Helmholtz Institute for RNA-Based Infection Research, Würzburg; TI Bioresources, Biodata, and Digital Health (TI BBD), German Center for Infection Research (DZIF), Braunschweig; TWINCORE, Center for Experimental and Clinical Infection Research, Hanover.
Manuela Harries
Stephan Glöckner
Monika Strengert
Tobias Kerrinnes
Jana-Kristin Heise
Henrike Maaß
Julia Ortmann
Barbora Kessel
Yvonne Kemmling
Berit Lange
Gérard Krause

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUntil now, information on the spread of SARS-CoV-2 infections in Germany has been based mainly on data from the public health offices. It may be assumed that these data do not include many cases of asymptomatic and mild infection.

methodsWe determined seroprevalence over the course of the pandemic in a sequential, multilocal seroprevalence study (MuSPAD). Study participants were recruited at random in seven administrative districts (Kreise) in Germany from July 2020 onward; each participant was tested at two different times 3-5 months apart. Test findings on blood samples were used to determine the missed-case rate of reported infections, the infection fatality rate (IFR), and the association between seropositivity and demographic, socio-economic, and health-related factors, as well as to evaluate the self-reported results of PCR and antigenic tests. The registration number of this study is DRKS00022335.

resultsAmong non-vaccinated persons, the seroprevalence from July to December 2020 was 1.3-2.8% and rose between February and May 2021 to 4.1-13.1%. In July 2021, 35% of tested persons in Chemnitz were not vaccinated, and the seroprevalence among these persons was 32.4% (07/2021). The surveillance detection ratio (SDR), i.e., the ratio between the true number of infections estimated from seroprevalence and the actual number or reported infections, varied among the districts included in the study from 2.2 to 5.1 up to December 2020 and from 1.3 to 2.9 up to June 2021, and subsequently declined. The IFR was in the range of 0.8% to 2.4% in all regions except Magdeburg, where a value of 0.3% was calculated for November 2020. A lower educational level was associated with a higher seropositivity rate, smoking with a lower seropositivity rate. On average, 1 person was infected for every 8.5 persons in quarantine.

conclusionSeroprevalence was low after the first wave of the pandemic but rose markedly during the second and third waves. The missed-case rate trended downward over the course of the pandemic.

Indexed as

COVID-19SARS-CoV-2GermanyHumansPandemicsSeroepidemiologic Studies

Identifiers

PMID35191825
PMCPMC8888869

What OpenQuestion holds

Textmetadata
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Registered trials

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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.