Evidence map›Paper›PMID 36067238›Full record

ArticlePLoS neglected tropical diseases2022

Urban rats as carriers of invasive Salmonella Typhimurium sequence type 313, Kisangani, Democratic Republic of Congo.

Dadi Falay, Liselotte Hardy, Jacques Tanzito, Octavie Lunguya, Edmonde Bonebe, Marjan Peeters, Wesley Mattheus, Chris Van Geet, Erik Verheyen, Dudu Akaibe and 5 more

Abstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Ecology and epidemiology of multidrug-resistantOne health (Amsterdam, Netherlands) · 2025
    Article
  2. Article
  3. Rodent malaria parasites detected in the invasiveInternational journal for parasitology. Parasites and wildlife · 2025
    Article
  4. Article
  5. Article
  6. Emergence and Comparative Genome Analysis ofInternational journal of molecular sciences · 2024
    Article
  7. Article
  8. Review
  9. Invasive non-typhoidalFrontiers in microbiology · 2023
    Article
  10. Intestinal carriage of invasive non-typhoidalFrontiers in microbiology · 2023
    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

15 authors.

Dadi FalayDepartment of Pediatrics, University Hospital of Kisangani, Kisangani, the Democratic Republic of the Congo.
Liselotte HardyDepartment of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.ORCID 0000-0002-8785-5081
Jacques TanzitoBiodiversity Monitoring Center (Centre de Surveillance de la Biodiversité, CSB), Faculty of Science, University of Kisangani, Kisangani, the Democratic Republic of the Congo.
Octavie LunguyaDepartment of Medical Biology, National Institute for Biomedical Research, Kinshasa, the Democratic Republic of the Congo.
Edmonde BonebeDepartment of Medical Biology, National Institute for Biomedical Research, Kinshasa, the Democratic Republic of the Congo.
Marjan PeetersDepartment of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
Wesley MattheusSciensano, Infectious Diseases in Humans, Bacterial Diseases, Brussels, Belgium.
Chris Van GeetDepartment of Cardiovascular Sciences and Pediatrics, KU Leuven and University Hospital Leuven, Leuven, Belgium.
Erik VerheyenOD Taxonomy & Phylogeny, Royal Belgian Institute of Natural Sciences, Brussels, Belgium.
Dudu AkaibeBiodiversity Monitoring Center (Centre de Surveillance de la Biodiversité, CSB), Faculty of Science, University of Kisangani, Kisangani, the Democratic Republic of the Congo.
Pionus KatualaBiodiversity Monitoring Center (Centre de Surveillance de la Biodiversité, CSB), Faculty of Science, University of Kisangani, Kisangani, the Democratic Republic of the Congo.
Dauly NgbondaDepartment of Pediatrics, University Hospital of Kisangani, Kisangani, the Democratic Republic of the Congo.
François-Xavier WeillInstitut Pasteur, Université Paris Cité, Unité des bactéries pathogènes entériques, Paris, France.
Maria Pardos de la GandaraInstitut Pasteur, Université Paris Cité, Unité des bactéries pathogènes entériques, Paris, France.
Jan JacobsDepartment of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInvasive non-typhoidal Salmonella (iNTS-mainly serotypes Enteritidis and Typhimurium) are major causes of bloodstream infections in children in sub-Saharan Africa, but their reservoir remains unknown. We assessed iNTS carriage in rats in an urban setting endemic for iNTS carriage and compared genetic profiles of iNTS from rats with those isolated from humans. METHODOLOGY/PRINCIPAL

findingsFrom April 2016 to December 2018, rats were trapped in five marketplaces and a slaughterhouse in Kisangani, Democratic Republic of the Congo. After euthanasia, blood, liver, spleen, and rectal content were cultured for Salmonella. Genetic relatedness between iNTS from rats and humans-obtained from blood cultures at Kisangani University Hospital-was assessed with multilocus variable-number tandem repeat (VNTR) analysis (MLVA), multilocus sequence typing (MLST) and core-genome MLST (cgMLST). 1650 live-capture traps yielded 566 (34.3%) rats (95.6% Rattus norvegicus, 4.4% Rattus rattus); 46 (8.1%) of them carried Salmonella, of which 13 had more than one serotype. The most common serotypes were II.42:r:- (n = 18 rats), Kapemba (n = 12), Weltevreden and Typhimurium (n = 10, each), and Dublin (n = 8). Salmonella Typhimurium belonged to MLST ST19 (n = 7 rats) and the invasive ST313 (n = 3, isolated from deep organs but not from rectal content). Sixteen human S. Typhimurium isolates (all ST313) were available for comparison: MLVA and cgMLST revealed two distinct rat-human clusters involving both six human isolates, respectively, i.e. in total 12/16 human ST313 isolates. All ST313 Typhimurium isolates from rats and humans clustered with the ST313 Lineage 2 isolates and most were multidrug resistant; the remaining isolates from rats including S. Typhimurium ST19 were pan-susceptible.

conclusionThe present study provides evidence of urban rats as potential reservoirs of S. Typhimurium ST313 in an iNTS endemic area in sub-Saharan Africa.

Indexed as

Salmonella InfectionsSalmonella typhimuriumAnimalsChildDemocratic Republic of the CongoHumansMultilocus Sequence TypingRatsSerogroup

Identifiers

PMID36067238
PMCPMC9481155

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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.