Evidence map›Paper›PMID 34829457›Full record

ArticleDiagnostics (Basel, Switzerland)2021

Diagnostic Performance of Automated SARS-CoV-2 Antigen Assay in Nasal Swab during COVID-19 Vaccination Campaign.

Haya Altawalah, Wadha Alfouzan, Talal Al-Fadalah, Sayeh Ezzikouri

Open access · goldAbstract read
In one paragraph

Article in Diagnostics (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 26% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Does the COVID-19 Vaccination Reduce the Risk to Transmit SARS-CoV-2 to Others?Advances in experimental medicine and biology · 2024
    Review
  3. Article
  4. High performance of the automated ADVIA Centaur Systems SARS-CoV-2 Antigen Assay in nasopharyngeal samples with high viral load.International microbiology : the official journal of the Spanish Society for Microbiology · 2023
    Article
  5. Analysis of diagnostic performance and factors causing nonspecific reactions in SARS-CoV-2 rapid antigen detection tests.Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy · 2023
    Article
  6. Review
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

4 authors at 4 institutions in 2 countries.

Haya AltawalahDepartment of Microbiology, Faculty of Medicine, Kuwait University, Safat 24923, Kuwait.
Wadha AlfouzanDepartment of Microbiology, Faculty of Medicine, Kuwait University, Safat 24923, Kuwait.
Talal Al-FadalahQualities and Accreditation Directorate, Ministry of Health, Safat 13001, Kuwait.
Sayeh EzzikouriVirology Unit, Viral Hepatitis Laboratory, Institut Pasteur du Maroc, Casablanca 20250, Morocco.ORCID 0000-0002-3982-6163
Farwaniya Hospital · KWInstitut Pasteur du Maroc · MAKuwait University · KWMinistry of Health · KW

Funding

Ministry of Health, Kuwait 2021
6 · The paper itself

Abstract

backgroundTo control the spread of the pandemic brought about by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, it is necessary to have an automated reliable diagnostic assay. To date, the RT-PCR (RT-qPCR) has been the recommended laboratory method to diagnose SARS-CoV-2 infection, but there is a need for more automated and reliable tests. The aim of this real-life study was to assess the diagnostic performance of DiaSorin's LIAISON SARS-CoV-2 antigen (Ag) chemiluminescence immunoassay in detecting SARS-CoV-2 in vaccinated and unvaccinated individuals.

methodsA prospective study was performed on 300 nasopharyngeal swabs randomly collected from 31 May to 6 July 2021. Nasopharyngeal samples were assayed with DiaSorin's LIAISON SARS-CoV-2 Ag and TaqPath™ COVID-19 multiplex RT-qPCR.

resultsOf 300 participants, 150 had a RT-qPCR confirmed SARS-CoV-2 infection of whom 113 (75.33%) were also detected by the DiaSorin LIAISON SARS-CoV-2 Ag. Taking RT-qPCR as a reference, the sensitivity and specificity of the DiaSorin LIAISON SARS-CoV-2 Ag assay were evaluated as 75.33% (95% CI = 67.64-82) and 100% (95% CI = 97.57-100), respectively. When a viral load cut-off was applied for high viral load (median cycle threshold (Ct) < 18.57), the overall sensitivity was increased to 96.55% (95% CI = 88.09-99.58). Interestingly, median RT-qPCR Ct and SARS-CoV-2 Ag values were similar between fully vaccinated and unvaccinated subjects.

conclusionsAutomated, quantitative LIAISON SARS-CoV-2 Ag assay shows good performance to identify SARS-CoV-2-infected individuals with moderate to high viral loads. LIAISON SARS-CoV-2 Ag testing could be used as frontline testing for COVID-19 diagnosis and be more suitable for large utilization.

Indexed as

Ag-RDTCOVID-19diagnosisrapid decisionsSARS-CoV2

Identifiers

PMID34829457
PMCPMC8621910
OpenAlexW3211836551

What OpenQuestion holds

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LicenceCC BY
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.