Evidence map›Paper›PMID 26437456›Full record

ArticlePLoS neglected tropical diseases2015

Urban Market Gardening and Rodent-Borne Pathogenic Leptospira in Arid Zones: A Case Study in Niamey, Niger.

Gauthier Dobigny, Madougou Garba, Caroline Tatard, Anne Loiseau, Max Galan, Ibrahima Kadaouré, Jean-Pierre Rossi, Mathieu Picardeau, Eric Bertherat

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

23 citing papers in PubMed, 46 citations in OpenAlex.

  1. A systematic review and meta-analysis ofOne health (Amsterdam, Netherlands) · 2026
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  5. Detection of two zoonotic pathogens,One health (Amsterdam, Netherlands) · 2025
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  8. Spatiotemporal assessment of pathogenicJournal of water and health · 2024
    Article
  9. Article
  10. Article
  11. First Molecular Detection of PathogensTropical medicine and infectious disease · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. 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

9 authors at 7 institutions in 4 countries.

Gauthier DobignyInstitut de Recherche pour le Développement, Centre de Biologie pour la Gestion des Populations (UMR IRD-INRA-CIRAD-SupAgro Montpellier), Campus International de Baillarguet CS30016, Montferrier-sur-Lez, France.
Madougou GarbaDirection Générale de la Protection des Végétaux, Ministère de l'Agriculture, Niamey, Niger.
Caroline TatardInstitut National de la Recherche Agronomique, CBGP, Campus International de Baillarguet CS30016, Montferrier-sur-Lez, France.
Anne LoiseauInstitut National de la Recherche Agronomique, CBGP, Campus International de Baillarguet CS30016, Montferrier-sur-Lez, France.
Max GalanInstitut National de la Recherche Agronomique, CBGP, Campus International de Baillarguet CS30016, Montferrier-sur-Lez, France.
Ibrahima KadaouréCentre Régional Agrhymet, USAid/Fews-Net, Niamey, Niger.
Jean-Pierre RossiInstitut National de la Recherche Agronomique, CBGP, Campus International de Baillarguet CS30016, Montferrier-sur-Lez, France.
Mathieu PicardeauInstitut Pasteur, Unité de Biologie des Spirochètes, Centre National de Référence et Centre Collaborateur de l'OMS de la Leptospirose, Paris, France.
Eric BertheratWorld Health Organization, Geneva, Switzerland.
Agropolis International · FRCentre de Biologie et de Gestion des Populations · FRInstitut de Recherche pour le Développement · FRInstitut National de la Recherche Agronomique · MAMinistère de la Santé Publique · NEUnited Nations Children's Fund Niger · NEWorld Health Organization · CH

Funding

World Health Organization 001
6 · The paper itself

Abstract

Leptospirosis essentially affects human following contact with rodent urine-contaminated water. As such, it was mainly found associated with rice culture, recreational activities and flooding. This is also the reason why it has mainly been investigated in temperate as well as warm and humid regions, while arid zones have been only very occasionally monitored for this disease. In particular, data for West African countries are extremely scarce. Here, we took advantage of an extensive survey of urban rodents in Niamey, Niger, in order to look for rodent-borne pathogenic Leptospira species presence and distribution across the city. To do so, we used high throughput bacterial 16S-based metabarcoding, lipL32 gene-targeting RT-PCR, rrs gene sequencing and VNTR typing as well as GIS-based multivariate spatial analysis. Our results show that leptospires seem absent from the core city where usual Leptospira reservoir rodent species (namely R. rattus and M. natalensis) are yet abundant. On the contrary, L. kirschneri was detected in Arvicanthis niloticus and Cricetomys gambianus, two rodent species that are restricted to irrigated cultures within the city. Moreover, the VNTR profiles showed that rodent-borne leptospires in Niamey belong to previously undescribed serovars. Altogether, our study points towards the importance of market gardening in maintain and circulation of leptospirosis within Sahelian cities. In Africa, irrigated urban agriculture constitutes a pivotal source of food supply, especially in the context of the ongoing extensive urbanization of the continent. With this in mind, we speculate that leptospirosis may represent a zoonotic disease of concern also in arid regions that would deserve to be more rigorously surveyed, especially in urban agricultural settings.

Indexed as

GardeningAnimalsDisease ReservoirsLeptospiraMinisatellite RepeatsNigerRNA, Ribosomal, 16SRodentiaZoonosesRNA, Ribosomal, 16S

Identifiers

PMID26437456
PMCPMC4593649
OpenAlexW1945158892

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.