Evidence map›Paper›PMID 19687043›Full record

ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2009

Genetic diversity of Toxoplasma gondii in animals and humans.

L David Sibley, Asis Khan, James W Ajioka, Benjamin M Rosenthal

Open access · greenAbstract readReview
In one paragraph

Review in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 2 pooled it
7.2field-weighted citation impact, top 2% 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

95 citing papers in PubMed, 2 syntheses or guidelines pooled it, 202 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. The live attenuatedResearch square · 2026
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  4. A Live Attenuated AP2X-1-DeficientAnimals : an open access journal from MDPI · 2026
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  5. Article
  6. Endogenous cathelicidin protects againstInfection and immunity · 2026
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  7. Review
  8. Article
  9. Article
  10. Article
  11. Genotypic and neuropathological characterization ofFrontiers in veterinary science · 2026
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Vesicular mechanisms of drug resistance in apicomplexan parasites.Microbiology and molecular biology reviews : MMBR · 2025
    Review
  19. Article
  20. Article

35 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

4 authors at 3 institutions in 2 countries.

L David SibleyDepartment of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63130, USA. sibley@borcim.wsutl.edu
Asis Khan
James W Ajioka
Benjamin M Rosenthal
Washington University in St. Louis · USUnited States Department of Agriculture · USUniversity of Cambridge · GB

Funding

MOLECULAR BASIS OF TOXOPLASMOSIS IN AIDS PATIENTSR01AI036629 · NIAID · WASHINGTON UNIVERSITY · PI SIBLEY, L. DAVID · 1994 to 2013
$5.3M
Infectivity and Transmission of ToxoplasmosisR01AI059176 · NIAID · WASHINGTON UNIVERSITY · PI SIBLEY, L. DAVID · 2004 to 2013
$3.9M
NIAID NIH HHS R01 AI036629NIAID NIH HHS R01 AI059176Wellcome Trust
6 · The paper itself

Abstract

Toxoplasma gondii is one of the most widespread parasites of domestic, wild, and companion animals, and it also commonly infects humans. Toxoplasma gondii has a complex life cycle. Sexual development occurs only in the cat gut, while asexual replication occurs in many vertebrate hosts. These features combine to create an unusual population structure. The vast majority of strains in North America and Europe fall into three recently derived, clonal lineages known as types I, II and III. Recent studies have revealed that South American strains are more genetically diverse and comprise distinct genotypes. These differences have been shaped by infrequent sexual recombination, population sweeps and biogeography. The majority of human infections that have been studied in North America and Europe are caused by type II strains, which are also common in agricultural animals from these regions. In contrast, several diverse genotypes of T. gondii are associated with severe infections in humans in South America. Defining the population structure of T. gondii from new regions has important implications for transmission, immunogenicity and pathogenesis.

Indexed as

AnimalsClone CellsGenetic VariationHumansPhylogenyPrevalenceToxoplasmaToxoplasmosis, AnimalZoonoses

Identifiers

PMID19687043
PMCPMC2865090
OpenAlexW2128841444

What OpenQuestion holds

Textmetadata
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.