Evidence map›Paper›PMID 35366683›Full record

ArticleArchives of microbiology2022

The value of West Nile virus RNA detection by real-time RT-PCR in urine samples from patients with neuroinvasive forms.

Mariem Gdoura, Wasfi Fares, Souha Bougatef, Amine Inoubli, Henda Touzi, Nahed Hogga, Imen Ben Dhifallah, Naila Hannachi, Aida Argoubi, Saoussen Kacem and 3 more

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In one paragraph

Article in Archives of microbiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
3.4field-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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Efficient Detection of West Nile Virus in Urine Specimens by a Novel In-House RT-qPCR Detection Kit.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2025
    Article
  7. West Nile Virus (PeerJ · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. 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

13 authors at 6 institutions in 1 country.

Mariem GdouraLaboratory of Clinical Virology, Institut Pasteur de Tunis, University Tunis El Manar, 13 Place Pasteur, Tunis Belvédère, BP 74, 1002, Tunis, Tunisia. mariem.gdoura@pasteur.tn.ORCID http://orcid.org/0000-0002-2031-6534
Wasfi FaresLaboratory of Clinical Virology, Institut Pasteur de Tunis, University Tunis El Manar, 13 Place Pasteur, Tunis Belvédère, BP 74, 1002, Tunis, Tunisia.
Souha BougatefNational Observatory for New and Emerging Diseases, Tunis, Tunisia.
Amine InoubliLaboratory of Clinical Virology, Institut Pasteur de Tunis, University Tunis El Manar, 13 Place Pasteur, Tunis Belvédère, BP 74, 1002, Tunis, Tunisia.
Henda TouziLaboratory of Clinical Virology, Institut Pasteur de Tunis, University Tunis El Manar, 13 Place Pasteur, Tunis Belvédère, BP 74, 1002, Tunis, Tunisia.
Nahed HoggaLaboratory of Clinical Virology, Institut Pasteur de Tunis, University Tunis El Manar, 13 Place Pasteur, Tunis Belvédère, BP 74, 1002, Tunis, Tunisia.
Imen Ben DhifallahLaboratory of Clinical Virology, Institut Pasteur de Tunis, University Tunis El Manar, 13 Place Pasteur, Tunis Belvédère, BP 74, 1002, Tunis, Tunisia.
Naila HannachiLaboratory of Microbiology, CHU Farhat Hached, Sousse, Tunisia.
Aida ArgoubiLaboratory of Microbiology, CHU Fattouma Bourguiba, Monastir, Tunisia.
Saoussen KacemLaboratory of Microbiology, CHU Sahloul, Sousse, Tunisia.
Hela KarrayLaboratory of Microbiology, CHU Habib Bourguiba, Sfax, Tunisia.
Nissaf Ben AlayaNational Observatory for New and Emerging Diseases, Tunis, Tunisia.
Henda TrikiLaboratory of Clinical Virology, Institut Pasteur de Tunis, University Tunis El Manar, 13 Place Pasteur, Tunis Belvédère, BP 74, 1002, Tunis, Tunisia.
Tunis University · TNHôpital Farhat Hached · TNHôpital Sahloul · TNHopital Universitaire Habib Bourguiba · TNHospital Fatuma Bourguiba Monastir · TNNational Institute of Meteorology · TN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionRoutine laboratory screening is based on the detection of WNV specific IgM and IgG in blood and cerebrospinal fluid. Confirmation is then classically applied by real time RT-PCR (rRT-PCR) in Cerebrospinal fluid (CSF), which often gives negative results due to too short virorachia and late sampling. rRT-PCR was applied-for the first time for routine diagnosis purpose-on urine samples.

methodsDuring 2018 outbreak in Tunisia, 107 patients presented WNV neurologic symptoms and were positive for WNV serology. Of them, 95 patients were sampled for urine and 35 were sampled for CSF. Qualitative rRT-PCR was performed on both type of samples.

resultsWNV RNA was detected in 50.5% of urine samples (48/95) and in 2.8% of CSF samples (1/35). WNV RNA was detectable from day 1 to day 41 from symptom onset, however, positive urine rate was 53.1% during the first 10 days from symptom onset. The proportions of urine-positive and urine-negative samples, based on day of collection, showed no statistical difference (p > 0.005). Cycle threshold (Ct) values ranged from 12 to 39, with no correlation with the day of collection. The lowest Ct value was detected for urine sampled on day 5 after symptom onset. A statistically significant difference was found between age groups of confirmed and non confirmed cases (p < 0.001). DISCUSSION/

conclusionOur study reported the use of rRT-PCR on urine samples as a confirmatory diagnostic tool for WNV "probable cases" during an outbreak. Our findings underlined the reliability and the rapidity of this confirmatory tool, even late, and showed its superiority on CSF investigation.

Indexed as

West Nile FeverWest Nile virusHumansReproducibility of ResultsReverse Transcriptase Polymerase Chain ReactionRNA, ViralRNA, ViralHumansOutbreakRT-PCRTunisiaUrineWest Nile virus

Identifiers

PMID35366683
OpenAlexW4226441309

What OpenQuestion holds

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Registered trials

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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.