Evidence map›Paper›PMID 14766976›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2004

Genetic diversity and virulence potential of environmental Vibrio cholerae population in a cholera-endemic area.

Shah M Faruque, Nityananda Chowdhury, M Kamruzzaman, Michelle Dziejman, M Hasibur Rahman, David A Sack, G Balakrish Nair, John J Mekalanos

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 103 papers.

0numbers the graph read from it
0cells of the map it votes in
103citing 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

103 citing papers in PubMed.

  1. Article
  2. Article
  3. Allelic variations and gene cluster modularity act as nonlinear bottlenecks for cholera emergence.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. A One Health Insight into NoncholericOpen forum infectious diseases · 2025
    Article
  5. Article
  6. Exploring Mobile Genetic Elements in Vibrio cholerae.Genome biology and evolution · 2025
    Article
  7. Article
  8. Review
  9. Article
  10. Tropical medicine and infectious disease · 2024
    Article
  11. ToxigenicApplied and environmental microbiology · 2023
    Article
  12. Global expansion of Vibrio spp. in hot water.Environmental microbiology reports · 2023
    Article
  13. PandemicLife science alliance · 2023
    Article
  14. Frontiers in medicine · 2023
    Review
  15. Sequence Polymorphisms inApplied and environmental microbiology · 2022
    Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

43 more citing papers are in PubMed but not listed here.

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

8 authors.

Shah M FaruqueMolecular Genetics Laboratory, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka-1212, Bangladesh. faruque@icddrb.org
Nityananda Chowdhury
M Kamruzzaman
Michelle Dziejman
M Hasibur Rahman
David A Sack
G Balakrish Nair
John J Mekalanos

Funding

Phages and Genomic Variation in Vibrio Cholerae EvolutionR01GM068851 · NIGMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI MEKALANOS, JOHN JOSEPH · 2003 to 2015
$3.9M
NIGMS NIH HHS GM068851NIGMS NIH HHS R01 GM068851
6 · The paper itself

Abstract

To understand the evolutionary events and possible selection mechanisms involved in the emergence of pathogenic Vibrio cholerae, we analyzed diverse strains of V. cholerae isolated from environmental waters in Bangladesh by direct enrichment in the intestines of adult rabbits and by conventional laboratory culture. Strains isolated by conventional culture were mostly (99.2%) negative for the major virulence gene clusters encoding toxin-coregulated pilus (TCP) and cholera toxin (CT) and were nonpathogenic in animal models. In contrast, all strains selected in rabbits were competent for colonizing infant mice, and 56.8% of these strains carried genes encoding TCP alone or both TCP and CT. Ribotypes of toxigenic O1 and O139 strains from the environment were similar to pandemic strains, whereas ribotypes of non-O1 non-O139 strains and TCP(-) nontoxigenic O1 strains diverged widely from the seventh pandemic O1 and the O139 strains. Results of this study suggest that (i) the environmental V. cholerae population in a cholera-endemic area is highly heterogeneous, (ii) selection in the mammalian intestine can cause enrichment of environmental strains with virulence potential, (iii) pathogenicity of V. cholerae involves more virulence genes than currently appreciated, and (iv) most environmental V. cholerae strains are unlikely to attain a pandemic potential by acquisition of TCP and CT genes alone. Because most of the recorded cholera pandemics originated in the Ganges Delta region, this ecological setting presumably favors extensive genetic exchange among V. cholerae strains and thus promotes the rare, multiple-gene transfer events needed to assemble the critical combination of genes required for pandemic spread.

Indexed as

Evolution, MolecularWater MicrobiologyAnimalsBangladeshCholeraGenes, BacterialGenetic VariationGene Transfer, HorizontalHumansMiceModels, BiologicalMultigene FamilyPhylogenyRabbitsRibotypingRNA, BacterialRNA, BacterialRNA, Ribosomal

Identifiers

PMID14766976
PMCPMC357062

What OpenQuestion holds

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Registered trials

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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.