Relevance of target-level detection against routine multiplex PCR, validation set (Sanderson et al. 2026) to "Select an RNA pathogen-detection workflow for diagnostic testing"
- Use case
- Select an RNA pathogen-detection workflow for diagnostic testing
- Assessed by
- Target-level detection of respiratory pathogens against routine multiplex PCR, validation set (Sanderson et al. 2026)
- Relevance
- Proxy evidence
- Endpoint
- Target-level sensitivity and specificity of a nanopore RNA metagenomic workflow against routine multiplex PCR in 344 prospectively collected nasopharyngeal swabs (273 passing QC), overall, by pathogen and by viral load, under pre-specified and post-hoc detection criteria
A prospective validation of one RNA metagenomic workflow on respiratory swabs, scored as target-level sensitivity and specificity against the original clinical PCR, with thresholds fixed on a separate derivation set, matches the use case's inputs (nuclease-treated respiratory RNA, reverse-transcribed) and its output (sensitivity against original clinical testing for one respiratory mNGS assay). It is proxy evidence for the same reason as the UCSF anchor: agreement with the clinical PCR panel is not sensitivity against all infections, and samples were selected by PCR result. It compares detection criteria within one workflow, not different workflows.
Evidence
Source checking verifies the cited claim or transcription. It does not establish independent reproduction.
Evidence table
Inspect claims, sources and review details
Trace each statement to its source and review. A context-only reference supports the record generally; it does not verify an individual field. Source checking does not reproduce an experiment.
One row per statement and cited source. Multiple citations are not independent evaluations. Shared locators are labelled explicitly.
20 evidence rows matching the loaded filters
| Property and statement | Original source and location | Review and provenance |
|---|---|---|
Citation locations1 values
| Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance' Version: medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML | not individually reviewed No individual claim review recorded Audit detailsField: Source artifact SHA-256: Hash scope: Hash scope not separately documented; inspect source record |
| Comparison group sanderson2026-nanopore-nps Context-only references | Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance' Version: medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML | not individually reviewed No individual claim review recorded Audit detailsField: Source artifact SHA-256: Hash scope: Hash scope not separately documented; inspect source record |
| Comparison title Nanopore RNA metagenomics on nasopharyngeal swabs against multiplex PCR (Sanderson et al. 2026) Context-only references | Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance' Version: medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML | not individually reviewed No individual claim review recorded Audit detailsField: Source artifact SHA-256: Hash scope: Hash scope not separately documented; inspect source record |
Constraints3 values
| Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance' Version: medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML | not individually reviewed No individual claim review recorded Audit detailsField: Source artifact SHA-256: Hash scope: Hash scope not separately documented; inspect source record |
| Endpoint Target-level sensitivity and specificity of a nanopore RNA metagenomic workflow against routine multiplex PCR in 344 prospectively collected nasopharyngeal swabs (273 passing QC), overall, by pathogen and by viral load, under pre-specified and post-hoc detection criteria Context-only references | Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance' Version: medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML | not individually reviewed No individual claim review recorded Audit detailsField: Source artifact SHA-256: Hash scope: Hash scope not separately documented; inspect source record |
| Claimed field links:assessed_by:rna-pathogen-20261011-sanderson2026-protocol-validation Context-only references | Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance' Version: medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML | not individually reviewed No individual claim review recorded Audit detailsField: Source artifact SHA-256: Hash scope: Hash scope not separately documented; inspect source record |
| Headline metric recall Context-only references | Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance' Version: medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML | not individually reviewed No individual claim review recorded Audit detailsField: Source artifact SHA-256: Hash scope: Hash scope not separately documented; inspect source record |
Limitations9 values
| Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance' Version: medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML | not individually reviewed No individual claim review recorded Audit detailsField: Source artifact SHA-256: Hash scope: Hash scope not separately documented; inspect source record |
Pinned records19 values
| Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance' Version: medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML | not individually reviewed No individual claim review recorded Audit detailsField: Source artifact SHA-256: Hash scope: Hash scope not separately documented; inspect source record |
| Rationale A prospective validation of one RNA metagenomic workflow on respiratory swabs, scored as target-level sensitivity and specificity against the original clinical PCR, with thresholds fixed on a separate derivation set, matches the use case's inputs (nuclease-treated respiratory RNA, reverse-transcribed) and its output (sensitivity against original clinical testing for one respiratory mNGS assay). It is proxy evidence for the same reason as the UCSF anchor: agreement with the clinical PCR panel is not sensitivity against all infections, and samples were selected by PCR result. It compares detection criteria within one workflow, not different workflows. Context-only references | Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance' Version: medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML | not individually reviewed No individual claim review recorded Audit detailsField: Source artifact SHA-256: Hash scope: Hash scope not separately documented; inspect source record |
Sources and history
Release 2026-10-22-1b7cf027e4f6 · Record review: source checked
1 source record and release history
- Clinical validation of a novel metagenomic nanopore sequencing method for detecting viral respiratory pathogens: diagnostic accuracy study · Original source · medRxiv 10.64898/2026.02.06.26345651 v2, posted 2026-02-26; JATS XML
Technical metadata and extraction receipts
Stable ID: use-case-mapping-rna-pathogen-20261011-sanderson2026-validation
- field
- links:assessed_by:rna-pathogen-20261011-sanderson2026-protocol-validation
- value
- rna-pathogen-20261011-sanderson2026-protocol-validation
- relevance
- proxy
- endpoint
- Target-level sensitivity and specificity of a nanopore RNA metagenomic workflow against routine multiplex PCR in 344 prospectively collected nasopharyngeal swabs (273 passing QC), overall, by pathogen and by viral load, under pre-specified and post-hoc detection criteria
- rationale
- A prospective validation of one RNA metagenomic workflow on respiratory swabs, scored as target-level sensitivity and specificity against the original clinical PCR, with thresholds fixed on a separate derivation set, matches the use case's inputs (nuclease-treated respiratory RNA, reverse-transcribed) and its output (sensitivity against original clinical testing for one respiratory mNGS assay). It is proxy evidence for the same reason as the UCSF anchor: agreement with the clinical PCR panel is not sensitivity against all infections, and samples were selected by PCR result. It compares detection criteria within one workflow, not different workflows.
- constraints
- Inspect every linked evaluation's source locator and preserved limitations before citing a result.; Do not combine these results with another protocol's results; specimens, reference assays and scoring units differ between sources.; Cite the pre-specified criteria as the validation result; the alternative criterion is post-hoc.
- limitations
- Preprint (medRxiv v2); the Journal of Infection version was not retrieved or compared.; Developers' own workflow (author_reported).; The Abstract and Results give different specificity counts for the pre-specified criteria (3836/3845 against 3901/3910).; Upper respiratory swabs with high host background; sensitivity 51% overall, 19% for rhinovirus/enterovirus.; Nine false positives, attributed by the authors to barcode crossover in multiplexed runs.; 71 of 344 samples failed QC and are not scored.; Tables 1 to 3 are images in the preprint and were not transcribed; only values printed in the text are recorded.; Spectrum bias: inclusion required a pathogen detected at Ct or Cn 30 or below on the four-target assays, or FilmArray testing, with about one FilmArray-negative sample collected per eight positive samples; sensitivity and specificity are not estimates for unselected swabs.; Reads were mapped only to a curated database of the 23 PCR-panel pathogens, so the study does not measure detection of organisms outside the panel or false calls outside it.
- citation locators
- source id: rna-pathogen-20261011-sanderson2026-source; locator: Results 'Validation Set: Diagnostic performance', 'Performance by pathogen', 'Performance by viral load (Cn,Ct)'
- source locator
- rna-pathogen-20261011-sanderson2026-source: Results 'Validation Set: Diagnostic performance'
- revision
- 1
- reason
- Recorded from the 2026-10-11 RNA pathogen-detection literature pass (data/omics/use-case-coverage-rna-pathogen-20261011-sanderson2026). Independently reviewed in docs/reviews/use-cases/pathogen-use-cases-2026-10-11.md.
- comparison group
- sanderson2026-nanopore-nps
- comparison title
- Nanopore RNA metagenomics on nasopharyngeal swabs against multiplex PCR (Sanderson et al. 2026)
- headline metric
- recall
- stratum label
- Validation set
- stratum order
- 1
- review
- method: source-hash-verification; independent-cell-check; scope-review; reviewer: claude; reviewer note: Separate Claude review agent (reviewer-path), independent of the extractor; no human review claimed; date: 2026-10-11; artifact sha256: c0bc5c035742f53fe291e08b9d956102e102fd743a55de503f00bcaead36a7e2; retrieval url: https://www.medrxiv.org/content/early/2026/02/26/2026.02.06.26345651.source.xml; method note: Judgement drafted by the extracting agent from the pinned preprint.; note: Re-downloaded the pinned artifact and matched its SHA-256; compared every value with a separate stdlib parser written for this review (the extractor's script was not run) and checked a stratified sample by hand against the rendered table.
- reviewed evaluations
- rna-pathogen-20261011-sanderson2026-eval-alternative; rna-pathogen-20261011-sanderson2026-eval-prespecified
- pins
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