Evidence map›Paper›PMID 35248992›Full record

ArticleJournal of clinical virology : the official publication of the Pan American Society for Clinical Virology2022

Determining the reliability of rapid SARS-CoV-2 antigen detection in fully vaccinated individuals.

Nareshkumar Poopalasingam, Michael Korenkov, Artem Ashurov, Janina Strobel, Irina Fish, Martin Hellmich, Henning Gruell, Clara Lehmann, Eva Heger, Florian Klein

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 16% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. The effect of ivermectin on the viral load and culture viability in early treatment of nonhospitalized patients with mild COVID-19 - a double-blind, randomized placebo-controlled trial.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2022
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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

10 authors at 1 institution in 1 country.

Nareshkumar PoopalasingamInstitute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Fürst-Pückler-Straße 56, 50935 Cologne, Germany.
Michael KorenkovInstitute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Fürst-Pückler-Straße 56, 50935 Cologne, Germany.
Artem AshurovInstitute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Fürst-Pückler-Straße 56, 50935 Cologne, Germany.
Janina StrobelUniversity of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Str. 62, 50937 Cologne, Germany.
Irina FishInstitute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Fürst-Pückler-Straße 56, 50935 Cologne, Germany.
Martin HellmichInstitute of Medical Statistics, Informatics and Epidemiology, Faculty of Medicine, University of Cologne, Robert-Koch-Str. 10, 50931 Cologne, Germany.
Henning GruellInstitute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Fürst-Pückler-Straße 56, 50935 Cologne, Germany.
Clara LehmannGerman Center for Infection Research, Partner Site Bonn-Cologne, Kerpener Str. 62, 50937 Cologne, Germany; Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937 Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Robert-Koch-Str. 21, 50931 Cologne, Germany.
Eva HegerInstitute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Fürst-Pückler-Straße 56, 50935 Cologne, Germany.
Florian KleinInstitute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Fürst-Pückler-Straße 56, 50935 Cologne, Germany; German Center for Infection Research, Partner Site Bonn-Cologne, Kerpener Str. 62, 50937 Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Robert-Koch-Str. 21, 50931 Cologne, Germany. Electronic address: florian.klein@uk-koeln.de.
University of Cologne · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRapid antigen detection tests (RADT) are commonly used as SARS-CoV-2 diagnostic tests both by medical professionals and laypeople. However, the performance of RADT in vaccinated individuals has not been fully investigated.

objectivesRT-qPCR and rapid antigen detection testing were performed to evaluate the performance of the Standard Q COVID-19 Ag Test in detecting SARS-CoV-2 breakthrough infections in vaccinated individuals. STUDY

designTwo swab specimens, one for RT-qPCR and one for RADT, were collected from vaccinated individuals in an outpatient clinic. For comparison of RADT performance in vaccinated and unvaccinated individuals, a dataset already published by this group was used as reference.

resultsDuring the delta wave, a total of 696 samples were tested with both RT-qPCR and RADT that included 692 (99.4%) samples from vaccinated individuals. Of these, 76 (11.0%) samples were detected SARS-CoV-2 positive by RT-qPCR and 45 (6.5%) samples by the Standard Q COVID-19 Ag test. Stratified by Ct values, sensitivity of the RADT was 100.0%, 94.4% and 81.1% for Ct ≤ 20 (n=18), Ct ≤ 25 (n=36) and Ct ≤ 30 (n=53), respectively. Samples with Ct values ≥ 30 (n=23) were not detected. Overall RADT specificity was 99.7% and symptom status did not affect RADT performance. Notably, RADT detected 4 out of 4 samples of probable Omicron variant infection based on single nucleotide polymorphism analysis.

conclusionOur results show that RADT testing remains a valuable tool in detecting breakthrough infections with high viral RNA loads.

Indexed as

COVID-19VaccinationAntigens, ViralCOVID-19 Serological TestingHumansReproducibility of ResultsSARS-CoV-2Sensitivity and SpecificityAntigens, ViralAntigen testDeltaOmicronRT-qPCRSARS-CoV-2Vaccination

Identifiers

PMID35248992
PMCPMC8858005
OpenAlexW4220780751

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.