Evidence map›Paper›PMID 34224752›Full record

ArticleJournal of virological methods2021

Isothermal recombinase polymerase amplification-lateral flow detection of SARS-CoV-2, the etiological agent of COVID-19.

Thomas R Shelite, Ashanti C Uscanga-Palomeque, Alejandro Castellanos-Gonzalez, Peter C Melby, Bruno L Travi

Abstract read
In one paragraph

Article in Journal of virological methods, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
–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

32 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Optical lateral flow assays in early diagnosis of SARS-CoV-2 infection.Analytical sciences : the international journal of the Japan Society for Analytical Chemistry · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Recombinase-aided amplification assay for rapid detection of imipenem-resistantFrontiers in cellular and infection microbiology · 2024
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. COVID-19 diagnostics: Molecular biology to nanomaterials.Clinica chimica acta; international journal of clinical chemistry · 2023
    Review
  19. Review
  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

5 authors.

Thomas R SheliteDept. of Internal Medicine-Infectious Diseases, Univ. of Texas Medical Branch, Galveston, TX, United States. Electronic address: trshelit@utmb.edu.
Ashanti C Uscanga-PalomequeDept. of Internal Medicine-Infectious Diseases, Univ. of Texas Medical Branch, Galveston, TX, United States. Electronic address: asuscang@utmb.edu.
Alejandro Castellanos-GonzalezDept. of Internal Medicine-Infectious Diseases, Univ. of Texas Medical Branch, Galveston, TX, United States. Electronic address: alcastel@utmb.edu.
Peter C MelbyDept. of Internal Medicine-Infectious Diseases, Univ. of Texas Medical Branch, Galveston, TX, United States. Electronic address: pcmelby@utmb.edu.
Bruno L TraviDept. of Internal Medicine-Infectious Diseases, Univ. of Texas Medical Branch, Galveston, TX, United States. Electronic address: brltravi@utmb.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The rapid detection of novel pathogens including SARS-CoV-2 necessitates the development of easy-to-use diagnostic tests that can be readily adapted and utilized in both clinical laboratories and field settings. Delay in diagnosis has facilitated the rapid spread of this novel virus throughout the world resulting in global mortality that will surpass 2.5 million people. Development of point-of-care diagnostic assays that can be performed in rural or decentralized health care centers to expand testing capacity is needed. We developed a qualitative test based on recombinase-polymerase-amplification coupled with lateral flow reading (RPA-LF) for rapid detection of SARS-CoV-2. The RPA-LF detected SARS-CoV-2 with a limit of detection of 35.4 viral cDNA nucleocapsid (N) gene copies/μL. Additionally, the RPA-LF was able to detect 0.25-2.5 copies/μL of SARS-CoV-2 N gene containing plasmid. We evaluated 37 nasopharyngeal samples using CDC's N3, N1 and N2 RT-real-time PCR assays for SARS-CoV-2 as reference test. We found a 100 % concordance between RPA-LF and RT-qPCR reference test as determined by 18/18 positive and 19/19 negative samples. All positive samples had Ct values between 19-37 by RT-qPCR. The RPA-LF primers and probe did not cross react with other relevant betacoronaviruses such as SARS and MERS. This is the first isothermal amplification test paired with lateral flow developed for qualitative detection of COVID-19 allowing rapid viral detection and with prospective applicability in resource limited and decentralized laboratories.

Indexed as

COVID-19COVID-19 Nucleic Acid TestingDiagnostic Tests, RoutineDNA PrimersHumansNucleic Acid Amplification TechniquesPoint-of-Care TestingReal-Time Polymerase Chain ReactionRecombinasesRNA, ViralSARS-CoV-2Sensitivity and SpecificityDNA PrimersRecombinasesRNA, ViralCoronavirusDiagnosticsLateral flowPoint-of-careRPASARS-CoV-2

Identifiers

PMID34224752
PMCPMC8249690

What OpenQuestion holds

Textmetadata
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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.