Evidence map›Paper›PMID 32920028›Full record

ArticleJournal of virological methods2020

Comparison of commercial assays and laboratory developed tests for detection of SARS-CoV-2.

Kerry Dust, Adam Hedley, Kim Nichol, Derek Stein, Heather Adam, James A Karlowsky, Jared Bullard, Paul Van Caeseele, David C Alexander

Abstract readComparative Study
In one paragraph

Article in Journal of virological methods, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Emergence of Clinically Macrolide-UnresponsiveAntibiotics (Basel, Switzerland) · 2026
    Article
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  5. Article
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  7. Review
  8. Article
  9. Review
  10. Observational
  11. Article
  12. Article
  13. Article
  14. Observational
  15. Review
  16. Laboratory Diagnosis of SARS-CoV-2 Pneumonia.Diagnostics (Basel, Switzerland) · 2021
    Review
  17. Article
  18. Article
  19. 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

9 authors.

Kerry DustCadham Provincial Laboratory, Manitoba Health, Winnipeg, Manitoba, Canada.
Adam HedleyCadham Provincial Laboratory, Manitoba Health, Winnipeg, Manitoba, Canada.
Kim NicholDiagnostic Services, Shared Health, Winnipeg, Manitoba, Canada.
Derek SteinCadham Provincial Laboratory, Manitoba Health, Winnipeg, Manitoba, Canada.
Heather AdamDiagnostic Services, Shared Health, Winnipeg, Manitoba, Canada; Department of Medical Microbiology & Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
James A KarlowskyDiagnostic Services, Shared Health, Winnipeg, Manitoba, Canada; Department of Medical Microbiology & Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
Jared BullardCadham Provincial Laboratory, Manitoba Health, Winnipeg, Manitoba, Canada; Department of Medical Microbiology & Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada; Department of Pediatrics & Child Health, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
Paul Van CaeseeleCadham Provincial Laboratory, Manitoba Health, Winnipeg, Manitoba, Canada; Department of Medical Microbiology & Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada; Department of Pediatrics & Child Health, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
David C AlexanderCadham Provincial Laboratory, Manitoba Health, Winnipeg, Manitoba, Canada; Department of Medical Microbiology & Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada. Electronic address: David.Alexander@gov.mb.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The global COVID-19 pandemic has led to the rapid development of tests for detection of SARS-CoV-2. Studies are required to assess the relative performance of different assays. Here, we compared the performance of two commercial assays, the cobas® SARS-CoV-2 (Roche Diagnostics) and Xpert® Xpress SARS-CoV-2 (Cepheid®) tests, and a laboratory developed RT-PCR test adapted for use on the Hologic® Panther Fusion® (Hologic®) instrument as well as Bio-Rad and QIAGEN real-time PCR detection systems. Performance characteristics for each test were determined by testing clinical specimens and reference material. All assays detect the pan-Sarbecovirus E (envelope structural protein) gene plus a SARS-CoV-2-specific target. The limit of detection for the E gene target varied from ∼2 copies/reaction to >30 copies/reaction. Due to assay-specific differences in sample processing and nucleic acid extraction, the overall analytical sensitivity ranged from 24 copies/mL specimen to 574 copies/mL specimen. Despite these differences, there was 100 % agreement between the commercial and laboratory developed tests. No false-negative or false-positive SARS-CoV-2 results were observed and there was no cross-reactivity with common respiratory viruses, including endemic coronaviruses.

Indexed as

BetacoronavirusClinical Laboratory TechniquesMolecular Diagnostic TechniquesReagent Kits, DiagnosticCoronavirus InfectionsCOVID-19COVID-19 TestingCOVID-19 VaccinesHumansPandemicsPneumonia, ViralSARS-CoV-2Sensitivity and SpecificityCovid-19 aAPC vaccineCOVID-19 VaccinesReagent Kits, DiagnosticClinical virologyCOVID-19Molecular diagnosticsSARS-CoV-2

Identifiers

PMID32920028
PMCPMC7482591

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.