Evidence map›Paper›PMID 31863181›Full record

ArticleParasitology research2020

Multiple haplotypes of Echinococcus granulosus sensu stricto in single naturally infected intermediate hosts.

Christian Hidalgo, Caroll Stoore, Ismael Pereira, Rodolfo Paredes, Cristian A Alvarez Rojas

Abstract read
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In one paragraph

Article in Parasitology research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Frontiers in veterinary science · 2026
    Article
  3. Calprotectin Expression in Adventitial Layer of Cattle and SheepInternational journal of molecular sciences · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Weighted gene co-expression network analysis reveals immune evasion related genes inExperimental biology and medicine (Maywood, N.J.) · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Parasitology · 2020
    Article
  14. Microsatellite Investigations of MultiplePathogens (Basel, Switzerland) · 2020
    Article
  15. 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

5 authors at 2 institutions in 2 countries.

Christian HidalgoEscuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile.ORCID https://orcid.org/0000-0002-0780-6969
Caroll StooreEscuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile.ORCID https://orcid.org/0000-0001-9499-4314
Ismael PereiraEscuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile.
Rodolfo ParedesEscuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile. rparedes@unab.cl.ORCID https://orcid.org/0000-0002-5909-9362
Cristian A Alvarez RojasInstitute of Parasitology, University of Zürich, Zürich, Switzerland.ORCID https://orcid.org/0000-0002-8069-7607
Universidad Andrés Bello · CLUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cystic echinococcosis is a disease that affects both humans and animals, caused by cryptic species complex belonging to the platyhelminth Echinococcus granulosus sensu lato (s.l.). This disease is distributed worldwide, with E. granulosus sensu stricto (s.s.) being the most widespread of the species. High genetic variability has been demonstrated within E. granulosus s.s. studying single cyst per infected animal identifying a number of different haplotypes. However, few studies have addressed the genetic diversity of this parasite within a single intermediate host with multiple Echinococcus cysts. To date, it remains unknown if specific haplotypes of E. granulosus s.s. produce differences in biological features of the cyst. Here, we use the full length of the mitochondrial gene cox1 to determine E. granulosus s.s. haplotypes in samples from both cattle and sheep which harboured more than one cyst in different areas in Chile, where this parasite is endemic. We found 16 different haplotypes in 66 echinococcal cysts from 10 animals, and both cattle and sheep can harbour up to five different haplotypes of E. granulosus s.s. in the same animal. Regarding cyst fertility, five animals had both fertile and infertile Echinococcus cysts in both single and multiple haplotype infections. There was no association between haplotype and cyst fertility, size, or adventitial layer characteristics. Sampling and sequencing every Echinococcus cyst found in the intermediate host reveals a high molecular variability. We speculate that multiple haplotype infections could also suggest that intermediate hosts come from hyperendemic areas.

Indexed as

AnimalsCattleCattle DiseasesChileCyclooxygenase 1EchinococcosisEchinococcus granulosusFertilityGenes, MitochondrialGenetic VariationGenotypeHaplotypesHumansSheepSheep DiseasesCyclooxygenase 1CattleEchinococcus granulosusGenetic characterizationHistologySheep

Identifiers

PMID31863181
OpenAlexW2996667061

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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.