Evidence map›Paper›PMID 34793508›Full record

ArticlePloS one2021

Nanopore metagenomic sequencing for detection and characterization of SARS-CoV-2 in clinical samples.

Nick P G Gauthier, Cassidy Nelson, Michael B Bonsall, Kerstin Locher, Marthe Charles, Clayton MacDonald, Mel Krajden, Samuel D Chorlton, Amee R Manges

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.4field-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

14 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Nanopore sequencing in veterinary medicine: from concepts to clinical applications.Frontiers in cellular and infection microbiology · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Agnostic Sequencing for Detection of Viral Pathogens.Clinical microbiology reviews · 2023
    Review
  12. Review
  13. Article
  14. 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 at 2 institutions in 2 countries.

Nick P G GauthierDepartment of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada.
Cassidy NelsonMathematical Ecology Research Group, Department of Zoology, University of Oxford, Oxford, United Kingdom.
Michael B BonsallMathematical Ecology Research Group, Department of Zoology, University of Oxford, Oxford, United Kingdom.
Kerstin LocherDivision of Medical Microbiology, Vancouver General Hospital, Vancouver, British Columbia, Canada.
Marthe CharlesDivision of Medical Microbiology, Vancouver General Hospital, Vancouver, British Columbia, Canada.
Clayton MacDonaldDivision of Medical Microbiology, Vancouver General Hospital, Vancouver, British Columbia, Canada.ORCID 0000-0003-2567-8996
Mel KrajdenDepartment of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Samuel D ChorltonDepartment of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada.ORCID 0000-0001-9891-8546
Amee R MangesBritish Columbia Centre for Disease Control, Vancouver, British Columbia, Canada.ORCID 0000-0003-2462-7249
University of British Columbia · CAOxford Research Group · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe COVID-19 pandemic has underscored the need for rapid novel diagnostic strategies. Metagenomic Next-Generation Sequencing (mNGS) may allow for the detection of pathogens that can be missed in targeted assays. The goal of this study was to assess the performance of nanopore-based Sequence-Independent Single Primer Amplification (SISPA) for the detection and characterization of SARS-CoV-2.

methodsWe performed mNGS on clinical samples and designed a diagnostic classifier that corrects for barcode crosstalk between specimens. Phylogenetic analysis was performed on genome assemblies.

resultsOur assay yielded 100% specificity overall and 95.2% sensitivity for specimens with a RT-PCR cycle threshold value less than 30. We assembled 10 complete, and one near-complete genomes from 20 specimens that were classified as positive by mNGS. Phylogenetic analysis revealed that 10/11 specimens from British Columbia had a closest relative to another British Columbian specimen. We found 100% concordance between phylogenetic lineage assignment and Variant of Concern (VOC) PCR results. Our assay was able to distinguish between the Alpha and Gamma variants, which was not possible with the current standard VOC PCR being used in British Columbia.

conclusionsThis study supports future work examining the broader feasibility of nanopore mNGS as a diagnostic strategy for the detection and characterization of viral pathogens.

Indexed as

MetagenomePandemicsCOVID-19HumansNanopore SequencingSARS-CoV-2Sensitivity and Specificity

Identifiers

PMID34793508
PMCPMC8601544
OpenAlexW3208391788

What OpenQuestion holds

Textmetadata
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.