Evidence map›Paper›PMID 32535397›Full record

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

Multiplexing primer/probe sets for detection of SARS-CoV-2 by qRT-PCR.

Garrett A Perchetti, Arun K Nalla, Meei-Li Huang, Keith R Jerome, Alexander L Greninger

Open access · greenAbstract readEvaluation 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 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 14% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
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  14. Sample pooling strategies for SARS-CoV-2 detection.Journal of virological methods · 2021
    Review
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  16. COVID-19: A challenge for electrochemical biosensors.Trends in analytical chemistry : TRAC · 2021
    Review
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  18. Modifying laboratory testing via home brew during the COVID-19 pandemic.Journal of clinical and translational science · 2021
    Article
  19. Analytical sensitivity and clinical performance of a triplex RT-qPCR assay using CDC N1, N2, and RP targets for SARS-CoV-2 diagnosis.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2021
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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

5 authors at 2 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.
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 · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe novel respiratory virus SARS-CoV-2, responsible for over 380,000 COVID-19 related deaths, has caused significant strain on healthcare infrastructure and clinical laboratories globally. The pandemic's initial challenges include broad diagnostic testing, consistent reagent supply lines, and access to laboratory instruments and equipment. In early 2020, primer/probe sets distributed by the CDC utilized the same fluorophore for molecular detection - requiring multiple assays to be run in parallel - consuming valuable and limited resources.

methodsNasopharyngeal swabs submitted to UW Virology for SARS-CoV-2 clinical testing were extracted, amplified by our laboratory developed test (LDT) - a CDC-based quantitative reverse transcriptase PCR reaction - and analyzed for agreement between the multiplexed assay. Laboratory- confirmed respiratory infection samples were included to evaluate assay cross-reaction specificity.

resultsTriplexing correctly identified SARS-CoV-2 in 98.4% of confirmed positive or inconclusive patient samples by single-plex LDT (n = 183/186). All 170 SARS-CoV-2 negative samples tested by single-plex LDT were negative by triplexing. Other laboratory-confirmed respiratory infections did not amplify for SARS-CoV-2 in the triplex reaction.

conclusionsMultiplexing two virus-specific gene targets and an extraction control was found to be comparable to running parallel assays independently, while significantly improving assay throughput.

Indexed as

BetacoronavirusClinical Laboratory TechniquesCoronavirus InfectionsCOVID-19COVID-19 TestingDNA PrimersHumansOligonucleotide ProbesPandemicsPneumonia, ViralReal-Time Polymerase Chain ReactionRNA, ViralSARS-CoV-2Sensitivity and SpecificityDNA PrimersOligonucleotide ProbesRNA, ViralCOVID-19LDTMultiplexRT-PCRSARS-CoV-2Triplex

Identifiers

PMID32535397
PMCPMC7278635
OpenAlexW3033206795

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.