Evidence map›Paper›PMID 29907838›Full record

Trial reportScientific reports2018

Diagnosis of Human Leptospirosis in a Clinical Setting: Real-Time PCR High Resolution Melting Analysis for Detection of Leptospira at the Onset of Disease.

Lisa M Esteves, Sara M Bulhões, Claudia C Branco, Teresa Carreira, Maria L Vieira, Maria Gomes-Solecki, Luisa Mota-Vieira

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 4 pooled it
5.7field-weighted citation impact, top 3% 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

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

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Nucleic acid and antigen detection tests for leptospirosis.The Cochrane database of systematic reviews · 2019
    Pooled it
  5. Genetic Diversity ofPathogens (Basel, Switzerland) · 2026
    Article
  6. Diagnostic Performance of Two Commercial qPCR Kits forTropical medicine and infectious disease · 2026
    Article
  7. Molecular identification and phylogenetic characterization ofJournal of advanced veterinary and animal research · 2026
    Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Advancing serologic diagnosis: assessing the efficacy of rErpY-like protein in human leptospirosis detection.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. One health approach on serosurvey of anti-One health (Amsterdam, Netherlands) · 2022
    Article
  18. Review
  19. Article
  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

7 authors at 4 institutions in 2 countries.

Lisa M EstevesMolecular Genetics and Pathology Unit, Hospital of Divino Espírito Santo of Ponta Delgada, EPER, São Miguel Island, Azores, Portugal.
Sara M BulhõesMolecular Genetics and Pathology Unit, Hospital of Divino Espírito Santo of Ponta Delgada, EPER, São Miguel Island, Azores, Portugal.
Claudia C BrancoMolecular Genetics and Pathology Unit, Hospital of Divino Espírito Santo of Ponta Delgada, EPER, São Miguel Island, Azores, Portugal.ORCID 0000-0002-7028-4657
Teresa CarreiraGlobal Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa (UNL), Lisboa, Portugal.
Maria L VieiraGlobal Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa (UNL), Lisboa, Portugal.
Maria Gomes-SoleckiDepartment of Microbiology, Immunology and Biochemistry, The University of Tennessee Health Science Center, Memphis, Tennessee, USA.ORCID 0000-0002-3715-4543
Luisa Mota-VieiraMolecular Genetics and Pathology Unit, Hospital of Divino Espírito Santo of Ponta Delgada, EPER, São Miguel Island, Azores, Portugal. Luisa.MQ.Vieira@azores.gov.pt.ORCID 0000-0003-1451-6705
Hospital do Divino Espírito Santo · PTUniversidade Nova de Lisboa · PTUniversity of Lisbon · PTUniversity of Tennessee Health Science Center · US

Funding

Lab on a chip point of care assay for the rapid serodiagnosis of Lyme diseaseR43AI096551 · NIAID · BIOPEPTIDES, INC. · PI GOMES-SOLECKI, MARIA · 2011 to 2012
$600k
Point of care assay for serodiagnosis of LeptospirosisR43AI136551 · NIAID · IMMUNO TECHNOLOGIES, INC. · PI GOMES-SOLECKI, MARIA · 2018 to 2019
$600k
NIAID NIH HHS R43 AI096551NIAID NIH HHS R43 AI136551
6 · The paper itself

Abstract

Currently, direct detection of Leptospira can be done in clinical laboratories by conventional and by real-time PCR (qRT-PCR). We tested a biobank of paired samples of serum and urine from the same patient (202 patients) presenting at the hospital in an area endemic for leptospirosis using qRT-PCR followed by high resolution melting (HRM) analysis. The results were compared with those obtained by conventional nested PCR and with the serologic gold standard microscopic agglutination test (MAT). Differences were resolved by sequencing. qRT-PCR-HRM was positive for 46 of the 202 patients (22.7%, accuracy 100%) which is consistent with known prevalence of leptospirosis in the Azores. MAT results were positive for 3 of the 46 patients (6.5%). Analysis of paired samples allowed us to identify the illness point at which patients presented at the hospital: onset, dissemination or excretion. The melting curve analysis of Leptospira species revealed that 60.9% (28/46) of patients were infected with L. interrogans and 39.1% (18/46) were infected with L. borgpetersenii, both endemic to the Azores. We validated the use of qRT-PCR-HRM for diagnosis of leptospirosis and for identification of the Leptospira species at the earliest onset of infection in a clinical setting, in less than 2 hours.

Indexed as

DNA, BacterialLeptospirosisNucleic Acid DenaturationFemaleHumansLeptospira interrogansMaleReal-Time Polymerase Chain ReactionSpainDNA, Bacterial

Identifiers

PMID29907838
PMCPMC6003994
OpenAlexW2808196769

What OpenQuestion holds

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LicenceCC BY
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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.