Evidence map›Paper›PMID 32405257›Full record

ArticleJournal of clinical virology : the official publication of the Pan American Society for Clinical Virology2020

Validation of SARS-CoV-2 detection across multiple specimen types.

Garrett A Perchetti, Arun K Nalla, Meei-Li Huang, Haiying Zhu, Yulun Wei, Larry Stensland, Michelle A Loprieno, Keith R Jerome, Alexander L Greninger

Open access · greenAbstract readEvaluation StudyValidation Study
In one paragraph

Article in Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 4 pooled it
1.9field-weighted citation impact, top 8% 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

50 citing papers in PubMed, 4 syntheses or guidelines pooled it, 75 citations in OpenAlex.

  1. SARS-CoV-2 saliva testing using RT-PCR: a systematic review.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2022
    Pooled it
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  5. Review
  6. Article
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  9. Agnostic Sequencing for Detection of Viral Pathogens.Clinical microbiology reviews · 2023
    Review
  10. Evaluation and clinical validation of monkeypox (mpox) virus real-time PCR assays.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2023
    Article
  11. Article
  12. Second round of an interlaboratory comparison of SARS-CoV2 molecular detection assays used by 45 veterinary diagnostic laboratories in the United States.Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 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

9 authors at 3 institutions in 1 country.

Garrett A PerchettiDepartment of Laboratory Medicine, Virology Division, University of Washington, Seattle, WA, United States.
Arun K NallaDepartment of Laboratory Medicine, Virology Division, University of Washington, Seattle, WA, United States.
Meei-Li HuangDepartment of Laboratory Medicine, Virology Division, University of Washington, Seattle, WA, United States.
Haiying ZhuDepartment of Laboratory Medicine, Virology Division, University of Washington, Seattle, WA, United States.
Yulun WeiDepartment of Laboratory Medicine, Virology Division, University of Washington, Seattle, WA, United States.
Larry StenslandDepartment of Laboratory Medicine, Virology Division, University of Washington, Seattle, WA, United States.
Michelle A LoprienoVaccine and Infectious Diseases Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States.
Keith R JeromeDepartment of Laboratory Medicine, Virology Division, University of Washington, Seattle, WA, United States; Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States.
Alexander L GreningerDepartment of Laboratory Medicine, Virology Division, University of Washington, Seattle, WA, United States; Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States. Electronic address: agrening@uw.edu.
University of Washington · USInfectious Disease Research Institute · USFred Hutch Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSevere Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has caused considerable disruption across the world, resulting in more than 235,000 deaths since December 2019. SARS-CoV-2 has a wide tropism and detection of the virus has been described in multiple specimen types, including various respiratory secretions, cerebrospinal fluid, and stool.

objectiveTo evaluate the accuracy and sensitivity of a laboratory modified CDCbased SARS-CoV-2 N1 and N2 assay across a range of sample types. Study Design We compared the matrix effect on the analytical sensitivity of SARS-CoV-2 detection by qRT-PCR in nasal swabs collected in viral transport medium (VTM), bronchoalveolar lavage (BAL), sputum, plasma, cerebral spinal fluid (CSF), stool, VTM, phosphate buffered saline (PBS), and Hanks' Balanced Salt Solution (HBSS). Initial limits of detection (LoD) were subsequently narrowed to confirm an LoD for each specimen type and target gene.

resultsLoDs were established using a modified CDC-based laboratory developed test and ranged from a mean CT cut-off of 33.8-35.7 (10-20 copies/reaction) for the N1 gene target, and 34.0-36.2 (1-10 copies/reaction) for N2. Alternatives to VTM such as PBS and HBSS had comparable LoDs. The N2 gene target was found to be most sensitive in CSF.

conclusionA modified CDC-based laboratory developed test is able to detect SARSCoV- 2 accurately with similar sensitivity across all sample types tested.

Indexed as

BetacoronavirusClinical Laboratory TechniquesCoronavirus InfectionsCOVID-19COVID-19 TestingFecesHumansPandemicsPneumonia, ViralReproducibility of ResultsSARS-CoV-2Sensitivity and SpecificitySputumBALCoronavirusCSFSARS-CoV-2SensitivitySpecimen type

Identifiers

PMID32405257
PMCPMC7219399
OpenAlexW3024219852

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.