Evidence map›Paper›PMID 21931876›Full record

ArticlePLoS neglected tropical diseases2011

Phylogeography and molecular epidemiology of Yersinia pestis in Madagascar.

Amy J Vogler, Fabien Chan, David M Wagner, Philippe Roumagnac, Judy Lee, Roxanne Nera, Mark Eppinger, Jacques Ravel, Lila Rahalison, Bruno W Rasoamanana and 4 more

Abstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing 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

44 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Human plague: An old scourge that needs new answers.PLoS neglected tropical diseases · 2020
    Review
  11. Article
  12. Trends of Human Plague, Madagascar, 1998-2016.Emerging infectious diseases · 2019
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Dynamics of the pneumonic plague epidemic in Madagascar, August to October 2017.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2017
    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

14 authors.

Amy J VoglerCenter for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff, Arizona, USA.
Fabien Chan
David M Wagner
Philippe Roumagnac
Judy Lee
Roxanne Nera
Mark Eppinger
Jacques Ravel
Lila Rahalison
Bruno W Rasoamanana
Stephen M Beckstrom-Sternberg
Mark Achtman
Suzanne Chanteau
Paul Keim

Funding

Vaccines and Diagnostics TrialsU54AI065359 · NIAID · UNIVERSITY OF CALIFORNIA-IRVINE · PI BARBOUR, ALAN G. · 2005 to 2013
$88.8M
NIAID NIH HHS AI065359NIAID NIH HHS N01 AI030071NIAID NIH HHS U54 AI065359
6 · The paper itself

Abstract

backgroundPlague was introduced to Madagascar in 1898 and continues to be a significant human health problem. It exists mainly in the central highlands, but in the 1990s was reintroduced to the port city of Mahajanga, where it caused extensive human outbreaks. Despite its prevalence, the phylogeography and molecular epidemiology of Y. pestis in Madagascar has been difficult to study due to the great genetic similarity among isolates. We examine island-wide geographic-genetic patterns based upon whole-genome discovery of SNPs, SNP genotyping and hypervariable variable-number tandem repeat (VNTR) loci to gain insight into the maintenance and spread of Y. pestis in Madagascar. METHODOLOGY/PRINCIPAL

findingsWe analyzed a set of 262 Malagasy isolates using a set of 56 SNPs and a 43-locus multi-locus VNTR analysis (MLVA) system. We then analyzed the geographic distribution of the subclades and identified patterns related to the maintenance and spread of plague in Madagascar. We find relatively high levels of VNTR diversity in addition to several SNP differences. We identify two major groups, Groups I and II, which are subsequently divided into 11 and 4 subclades, respectively. Y. pestis appears to be maintained in several geographically separate subpopulations. There is also evidence for multiple long distance transfers of Y. pestis, likely human mediated. Such transfers have resulted in the reintroduction and establishment of plague in the port city of Mahajanga, where there is evidence for multiple transfers both from and to the central highlands. CONCLUSIONS/SIGNIFICANCE: The maintenance and spread of Y. pestis in Madagascar is a dynamic and highly active process that relies on the natural cycle between the primary host, the black rat, and its flea vectors as well as human activity.

Indexed as

Analysis of VarianceCluster AnalysisDNA, BacterialHumansMadagascarMinisatellite RepeatsMolecular EpidemiologyMolecular TypingPhylogeographyPlaguePolymerase Chain ReactionPolymorphism, Single NucleotideYersinia pestisDNA, Bacterial

Identifiers

PMID21931876
PMCPMC3172189

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LicenceCC BY
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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.