Evidence map›Paper›PMID 32929174›Full record

ArticleScientific reports2020

Koala immunogenetics and chlamydial strain type are more directly involved in chlamydial disease progression in koalas from two south east Queensland koala populations than koala retrovirus subtypes.

Amy Robbins, Jonathan Hanger, Martina Jelocnik, Bonnie L Quigley, Peter Timms

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 10% 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

25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Current status and future directions ofFrontiers in veterinary science · 2026
    Pooled it
  2. Pooled it
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  6. Dominance of Vaccine-SpecificEcology and evolution · 2025
    Article
  7. Correlation BetweenJournal of fungi (Basel, Switzerland) · 2025
    Article
  8. Article
  9. Article
  10. Epidemiology, Transmission Mode, and Pathogenesis ofAnimals : an open access journal from MDPI · 2024
    Review
  11. Article
  12. A retrospective epidemiological study of sarcoptic mange in koalas (International journal for parasitology. Parasites and wildlife · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. 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

5 authors at 2 institutions in 1 country.

Amy RobbinsGenecology Research Centre, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, QLD, 4556, Australia.
Jonathan HangerEndeavour Veterinary Ecology Pty Ltd, 1695 Pumicestone Road, Toorbul, QLD, 4510, Australia.
Martina JelocnikGenecology Research Centre, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, QLD, 4556, Australia.
Bonnie L QuigleyGenecology Research Centre, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, QLD, 4556, Australia.
Peter TimmsGenecology Research Centre, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, QLD, 4556, Australia. ptimms@usc.edu.au.
University of the Sunshine Coast · AUReef Ecologic · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chlamydial disease control is increasingly utilised as a management tool to stabilise declining koala populations, and yet we have a limited understanding of the factors that contribute to disease progression. To examine the impact of host and pathogen genetics, we selected two geographically separated south east Queensland koala populations, differentially affected by chlamydial disease, and analysed koala major histocompatibility complex (MHC) genes, circulating strains of Chlamydia pecorum and koala retrovirus (KoRV) subtypes in longitudinally sampled, well-defined clinical groups. We found that koala immunogenetics and chlamydial genotypes differed between the populations. Disease progression was associated with specific MHC alleles, and we identified two putative susceptibility (DCb 03, DBb 04) and protective (DAb 10, UC 01:01) variants. Chlamydial genotypes belonging to both Multi-Locus Sequence Typing sequence type (ST) 69 and ompA genotype F were associated with disease progression, whereas ST 281 was associated with the absence of disease. We also detected different ompA genotypes, but not different STs, when long-term infections were monitored over time. By comparison, KoRV profiles were not significantly associated with disease progression. These findings suggest that chlamydial genotypes vary in pathogenicity and that koala immunogenetics and chlamydial strains are more directly involved in disease progression than KoRV subtypes.

Indexed as

AnimalsBacterial LoadBacterial Outer Membrane ProteinsBacterial Typing TechniquesChlamydiaChlamydia InfectionsCoinfectionFemaleGammaretrovirusHaplotypesHost-Pathogen InteractionsImmunogeneticsMajor Histocompatibility ComplexMultilocus Sequence TypingPhascolarctidaePrevalenceBacterial Outer Membrane ProteinsOMPA outer membrane proteins

Identifiers

PMID32929174
PMCPMC7490398
OpenAlexW3085187333

What Socratic 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 Socratic graph.