Evidence map›Paper›PMID 23326615›Full record

SynthesisPLoS neglected tropical diseases2013

Evaluation of rK39 rapid diagnostic tests for canine visceral leishmaniasis: longitudinal study and meta-analysis.

Rupert J Quinnell, Connor Carson, Richard Reithinger, Lourdes M Garcez, Orin Courtenay

Open access · goldAbstract readEvaluation StudyMeta-Analysis
In one paragraph

Synthesis in PLoS neglected tropical diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
8.5field-weighted citation impact, top 2% 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

41 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Candidate antigens for serological testing (ELISA) and diagnosis of canine visceral leishmaniasis.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Evidence map of diagnosis, treatment, prognosis, prevention, and control in visceral leishmaniasis.Revista panamericana de salud publica = Pan American journal of public health · 2022
    Review
  11. Article
  12. Article
  13. Article
  14. Frontiers in veterinary science · 2021
    Article
  15. First Report of Canine Infection byInternational journal of environmental research and public health · 2020
    Article
  16. Article
  17. Article
  18. Article
  19. Production of a kinesin-related recombinant protein (Lbk39) fromOne health (Amsterdam, Netherlands) · 2019
    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

5 authors at 4 institutions in 3 countries.

Rupert J QuinnellSchool of Biology, University of Leeds, Leeds, United Kingdom. r.j.quinnell@leeds.ac.uk
Connor Carson
Richard Reithinger
Lourdes M Garcez
Orin Courtenay
University of Warwick · GBGeorge Washington University · USInstituto Evandro Chagas · BRUniversity of Leeds · GB

Funding

Biotechnology and Biological Sciences Research CouncilWellcome TrustWellcome Trust 036365Wellcome Trust 069169
6 · The paper itself

Abstract

backgroundThere is a need for sensitive and specific rapid diagnostic tests (RDT) for canine visceral leishmaniasis. The aims of this study were to evaluate the diagnostic performance of immunochromatographic dipstick RDTs using rK39 antigen for canine visceral leishmaniasis by (i) investigating the sensitivity of RDTs to detect infection, disease and infectiousness in a longitudinal cohort study of natural infection in Brazil, and (ii) using meta-analysis to estimate the sensitivity and specificity of RDTs from published studies. METHODOLOGY: We used a rK39 RDT (Kalazar Detect Canine Rapid Test; Inbios) to test sera collected from 54 sentinel dogs exposed to natural infection in an endemic area of Brazil. Dogs were sampled bimonthly for up to 27 months, and rK39 results compared to those of crude antigen ELISA, PCR, clinical status and infectiousness to sandflies. We then searched MEDLINE and Web of Knowledge (1993-2011) for original studies evaluating the performance of rK39 RDTs in dogs. Meta-analysis of sensitivity and specificity was performed using bivariate mixed effects models. PRINCIPAL

findingsThe sensitivity of the rK39 RDT in Brazil to detect infection, disease and infectiousness was 46%, 77% and 78% respectively. Sensitivity increased with time since infection, antibody titre, parasite load, clinical score and infectiousness. Sixteen studies met the inclusion criteria for meta-analysis. The combined sensitivity of rK39 RDTs was 86.7% (95% CI: 76.9-92.8%) to detect clinical disease and 59.3% (37.9-77.6%) to detect infection. Combined specificity was 98.7% (89.5-99.9%). Both sensitivity and specificity varied considerably between studies.

conclusionThe diagnostic performance of rK39 RDTs is reasonable for confirmation of infection in suspected clinical cases, but the sensitivity to detect infected dogs is too low for large-scale epidemiological studies and operational control programmes.

Indexed as

AnimalsBrazilChromatography, AffinityCohort StudiesDiagnostic Tests, RoutineDog DiseasesDogsLeishmaniasis, VisceralLongitudinal StudiesParasitologyProspective StudiesSensitivity and SpecificityVeterinary Medicine

Identifiers

PMID23326615
PMCPMC3542187
OpenAlexW1999137697

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.