Evidence map›Paper›PMID 31749999›Full record

ArticleBMJ global health2019

Redefining typhoid diagnosis: what would an improved test need to look like?

Richard G Mather, Heidi Hopkins, Christopher M Parry, Sabine Dittrich

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in BMJ global health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04673487 (Comparative Study of Commercially Available Typhoid Point of Care Tests to Benchmark Current and Emerging Tools), which is not on this map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 13% 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.

NCT04673487 unknown statusnot on this mapstarted 2021, after this paper: background citation

Comparative Study of Commercially Available Typhoid Point of Care Tests to Benchmark Current and Emerging Tools

TypeobservationalSponsorKenya Medical Research InstituteRan2021 to 2021Enrolled2,000ConditionsTyphoid FeverArms1. SD Bioline Salmonella Typhi IgG/IgM Fast test, 2. Typhidot Rapid IgG/IgM combo test, 3. TUBEX TF test, 4.Typhoid IgG/IgM Combo Rapid Test CE, 5. Enterocheck WB test, 6. Test-itTM Typhoid IgM test
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Mass of components and material distribution in lateral flow assay kits.Bulletin of the World Health Organization · 2025
    Article
  7. Article
  8. Review
  9. Observational
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. The Prevalence of UndiagnosedPathogens (Basel, Switzerland) · 2023
    Article
  16. Article
  17. Article
  18. The Burden of Typhoid Fever in Sub-Saharan Africa: A Perspective.Research and reports in tropical medicine · 2022
    Review
  19. Enteric fever.BMJ (Clinical research ed.) · 2021
    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

4 authors at 3 institutions in 3 countries.

Richard G MatherMalaria and Fever Program, Foundation for Innovative New Diagnostics (FIND), Geneva, Switzerland.ORCID 0000-0003-0893-4513
Heidi HopkinsFaculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK.ORCID 0000-0003-1076-6758
Christopher M ParryDepartment of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK.ORCID 0000-0001-7563-7282
Sabine DittrichMalaria and Fever Program, Foundation for Innovative New Diagnostics (FIND), Geneva, Switzerland.ORCID https://orcid.org/0000-0002-4522-2788
FIND · CHLiverpool School of Tropical Medicine · GBLondon School of Hygiene & Tropical Medicine · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTyphoid fever is one of the most common bacterial causes of acute febrile illness in the developing world, with an estimated 10.9 million new cases and 116.8 thousand deaths in 2017. Typhoid point-of-care (POC) diagnostic tests are widely used but have poor sensitivity and specificity, resulting in antibiotic overuse that has led to the emergence and spread of multidrug-resistant strains. With recent advances in typhoid surveillance and detection, this is the ideal time to produce a target product profile (TPP) that guides product development and ensure that a next-generation test meets the needs of users in the resource-limited settings where typhoid is endemic.

methodsA structured literature review was conducted to develop a draft TPP for a next-generation typhoid diagnostic test with minimal and optimal desired characteristics for 36 test parameters. The TPP was refined using feedback collected from a Delphi survey of key stakeholders in clinical medicine, microbiology, diagnostics and public and global health.

resultsA next-generation typhoid diagnostic test should improve patient management through the diagnosis and treatment of infection with acute

conclusionThis report outlines the first comprehensive TPP for typhoid fever and is intended to guide the development of a next-generation typhoid diagnostic test. An accurate POC test will reduce the morbidity and mortality of typhoid fever through rapid diagnosis and treatment and will have the greatest impact in reducing antimicrobial resistance if it is combined with diagnostics for other causes of acute febrile illness in a treatment algorithm.

Indexed as

diagnostics and toolsOther diagnostic or toolPublic Healthtyphoid and paratyphoid fevers

Identifiers

PMID31749999
PMCPMC6830052
OpenAlexW2964426951

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.