Evidence map›Paper›PMID 25037234›Full record

ArticleVirology journal2014

Detection of circulating norovirus genotypes: hitting a moving target.

Brenda-Lee Rooney, Janice Pettipas, Elsie Grudeski, Oksana Mykytczuk, Xiao-Li Pang, Tim F Booth, Todd F Hatchette, Jason J LeBlanc

Open access · goldAbstract read
In one paragraph

Article in Virology journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 21 citations in OpenAlex.

  1. Trial
  2. Article
  3. Surveillance forMicrobiology spectrum · 2025
    Article
  4. Hunting for mpox (monkeypox) mimickers: Use of the Biofire meningitis/encephalitis panel on lesion swabs to support alternative viral diagnoses.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2023
    Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Evaluation of a laboratory-developed test for simultaneous detection of norovirus and rotavirus by real-time RT-PCR on the Panther Fusion® system.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2020
    Article
  10. Norovirus: new developments and implications for travelers' diarrhea.Tropical diseases, travel medicine and vaccines · 2016
    Review
  11. Outbreak of Norovirus GII.P17-GII.17 in the Canadian Province of Nova Scotia.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2016
    Article
  12. 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

8 authors at 5 institutions in 1 country.

Brenda-Lee Rooney
Janice Pettipas
Elsie Grudeski
Oksana Mykytczuk
Xiao-Li Pang
Tim F Booth
Todd F Hatchette
Jason J LeBlancDalhousie University, Halifax, Nova Scotia, Canada. Jason.leblanc@cdha.nshealth.ca.
Dalhousie University · CASaskatchewan Disease Control Laboratory · CACapital District Health Authority · CAHealth Canada · CAProvincial Laboratory of Public Health · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough national surveillance programs are in place to monitor norovirus epidemiology, the emergence of new strains and the genetic diversity among genotypes can be challenging for clinical laboratories. This study evaluated the analytical and clinical performance characteristics of one real-time RT-PCR and two end-point RT-PCRs commonly used in microbiology laboratories.

methodsLower limit of detection (LoD) was determined using 10-fold dilutions of noroviruses belonging to different genotypes. The clinical performance of the real-time and end-point RT-PCRs was assessed in parallel using nucleic acids extracted from 186 stool specimens.

resultsThe real-time RT-PCR was highly sensitive and specific for the detection of norovirus genotypes that are currently circulating in Canada. In contrast, the two end-point RT-PCRs displayed poor analytical sensitivity or complete failure to detect certain norovirus genotypes, which was correlated to sequence mismatches in the primer-binding sites. In an attempt to improve norovirus detection with the end-point RT-PCRs, both assays were processed concurrently and detection from either assay was considered a positive result. Concurrent testing resulted in only a modest increase in clinical sensitivity (75.0%) compared to each assay alone (62.5% and 71.9%). However, the false positivity rate increased from 1.98% and 3.36% for the assays alone to 5.47% with concurrent testing.

conclusionsThis study emphasizes the benefits of a real-time method and provides support for routine surveillance to monitor norovirus epidemiology and ongoing proficiency testing to ensure detection of circulating norovirus genotypes.

Indexed as

GenotypeCaliciviridae InfectionsGastroenteritisHumansNorovirusReal-Time Polymerase Chain ReactionReproducibility of ResultsReverse Transcriptase Polymerase Chain ReactionSensitivity and Specificity

Identifiers

PMID25037234
PMCPMC4112979
OpenAlexW2099153677

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.