Evidence map›Paper›PMID 20419133›Full record

ArticlePloS one2010

Virulence differences among Francisella tularensis subsp. tularensis clades in mice.

Claudia R Molins, Mark J Delorey, Brook M Yockey, John W Young, Sarah W Sheldon, Sara M Reese, Martin E Schriefer, Jeannine M Petersen

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

38 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Animal modelling with theMicrobiology (Reading, England) · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. APathogens (Basel, Switzerland) · 2020
    Article
  8. Virulence ofMicroorganisms · 2020
    Article
  9. Review
  10. The Francisella tularensis Polysaccharides: What Is the Real Capsule?Microbiology and molecular biology reviews : MMBR · 2020
    Review
  11. Ecology ofAnnual review of entomology · 2020
    Review
  12. Article
  13. DifferentialFrontiers in immunology · 2018
    Article
  14. Phylogenetic Lineages ofFrontiers in cellular and infection microbiology · 2018
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. From the Outside-In: The Francisella tularensis Envelope and Virulence.Frontiers in cellular and infection microbiology · 2015
    Review
  20. 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

8 authors at 1 institution in 1 country.

Claudia R MolinsDivision of Vector-Borne Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado, United States of America.
Mark J Delorey
Brook M Yockey
John W Young
Sarah W Sheldon
Sara M Reese
Martin E Schriefer
Jeannine M Petersen
Centers for Disease Control and Prevention · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Francisella tularensis subspecies tularensis (type A) and holarctica (type B) are of clinical importance in causing tularemia. Molecular typing methods have further separated type A strains into three genetically distinct clades, A1a, A1b and A2. Epidemiological analyses of human infections in the United States suggest that A1b infections are associated with a significantly higher mortality rate as compared to infections caused by A1a, A2 and type B. To determine if genetic differences as defined by molecular typing directly correlate with differences in virulence, A1a, A1b, A2 and type B strains were compared in C57BL/6 mice. Here we demonstrate significant differences between survival curves for infections caused by A1b versus A1a, A2 and type B, with A1b infected mice dying earlier than mice infected with A1a, A2 or type B; these results were conserved among multiple strains. Differences were also detected among type A clades as well as between type A clades and type B with respect to bacterial burdens, and gross anatomy in infected mice. Our results indicate that clades defined within F. tularensis subsp. tularensis by molecular typing methods correlate with virulence differences, with A1b strains more virulent than A1a, A2 and type B strains. These findings indicate type A strains are not equivalent with respect to virulence and have important implications for public health as well as basic research programs.

Indexed as

AnimalsFrancisella tularensisHumansMiceMice, Inbred C57BLSpecies SpecificitySurvival RateTularemiaVirulence

Identifiers

PMID20419133
PMCPMC2855709
OpenAlexW1995435093

What OpenQuestion holds

Textmetadata
LicenceCC0
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.