Evidence map›Paper›PMID 41591232›Full record

ArticleTropical medicine and infectious disease2026

Strengthening the National Reference Laboratory in the Republic of Congo: An Investment Imperative for Tuberculosis Diagnostics.

Darrel Ornelle Elion Assiana, Franck Hardain Okemba-Okombi, Salomon Tchuandom Bonsi, Freisnel Hermeland Mouzinga, Juliet E Bryant, Jean Akiana, Tanou Joseph Kalivogui, Alain Disu Kamalandua, Nuccia Saleri, Lionel Caruana and 2 more

Abstract read
In one paragraph

Article in Tropical medicine and infectious disease, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Article
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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

12 authors.

Darrel Ornelle Elion AssianaFaculté des Sciences et Techniques, Université Marien Ngouabi, Brazzaville P.O. Box 69, Congo.ORCID 0009-0007-2666-0719
Franck Hardain Okemba-OkombiProgramme National de Lutte contre la Tuberculose, Brazzaville P.O. Box 1066, Congo.
Salomon Tchuandom BonsiProgramme National de Lutte contre la Tuberculose, Brazzaville P.O. Box 1066, Congo.ORCID 0009-0002-1055-005X
Freisnel Hermeland MouzingaFaculté des Sciences et Techniques, Université Marien Ngouabi, Brazzaville P.O. Box 69, Congo.ORCID 0009-0009-5838-6106
Juliet E BryantThe Global Fund to Fight AIDS, Tuberculosis and Malaria, P.O. Box 1218 Geneva, Switzerland.
Jean AkianaFaculté des Sciences et Techniques, Université Marien Ngouabi, Brazzaville P.O. Box 69, Congo.
Tanou Joseph KalivoguiUnited Nations Development Programme, Brazzaville P.O. Box 465, Congo.
Alain Disu KamalanduaProgramme National de Lutte contre la Tuberculose, Brazzaville P.O. Box 1066, Congo.
Nuccia SaleriThe Global Fund to Fight AIDS, Tuberculosis and Malaria, P.O. Box 1218 Geneva, Switzerland.
Lionel CaruanaThe Global Fund to Fight AIDS, Tuberculosis and Malaria, P.O. Box 1218 Geneva, Switzerland.
Hugues Traoré AskenUnited Nations Development Programme, Brazzaville P.O. Box 465, Congo.
Dissou AffolabiNational Teaching Hospital for Tuberculosis and Pulmonary Diseases, Cotonou P.O. Box 817, Benin.ORCID 0000-0002-5123-3491

Funding

Global Fund to Fight AIDS, Tuberculosis and Malaria GC7
6 · The paper itself

Abstract

National Tuberculosis Reference Laboratories (NTRLs) are central to tuberculosis (TB) control programs. Between 2018 and 2024, the Republic of Congo, a country of 6 million inhabitants, achieved a transformative strengthening of its TB diagnostic system, coordinated by the NTRL. Strategic investments, supported mainly by international partners, enabled a substantial decentralization of services, expanding the diagnostic network from 38 to 113 diagnostic and testing centers and increasing GeneXpert sites from 3 to 31. The expansion of the diagnostic network and specimen referral system was associated with a reduced structural gap in diagnostic coverage by extending access to GeneXpert testing to a larger number of peripheral and previously underserved centers. Critically, the establishment of a BSL-3 laboratory and the deployment of advanced assays like Xpert MTB/XDR ended the reliance on overseas testing by introducing in-country capacity for multidrug-resistant and pre-extensively drug-resistant TB detection. These systemic improvements were associated with significant positive outcomes, including an annual molecular testing surging from 11,609 in 2022 to over 27,000 in 2024 and bacteriological confirmation rates rising from 34 to 73%. This comprehensive laboratory systems strengthening, which also facilitated cross-programmatic initiatives like HIV and Mpox testing integration, underscores how sustained investment in infrastructure, logistics, and quality management is fundamental to improving case detection, surveillance, and progress toward the WHO End TB Strategy milestones.

Indexed as

drug-resistant TBNational Tuberculosis Reference LaboratoriesRepublic of CongosurveillanceTuberculosis

Identifiers

PMID41591232
PMCPMC12846663

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.