Evidence map›Paper›PMID 23354707›Full record

ArticleApplied and environmental microbiology2013

Genetic diversity of Cryptosporidium spp. within a remote population of Soay Sheep on St. Kilda Islands, Scotland.

L Connelly, B H Craig, B Jones, C L Alexander

Open access · bronzeAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 6% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Genetic diversity ofCurrent research in parasitology & vector-borne diseases · 2025
    Article
  6. Diverse Genotypes ofPathogens (Basel, Switzerland) · 2022
    Article
  7. Review
  8. Article
  9. Sheep as a Potential Source of Zoonotic Cryptosporidiosis in China.Applied and environmental microbiology · 2018
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. 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

4 authors at 3 institutions in 2 countries.

L ConnellyScottish Parasite Diagnostic and Reference Laboratory, Stobhill Hospital, Glasgow, Scotland.
B H Craig
B Jones
C L Alexander
Stobhill Hospital · GBGlasgow Royal Infirmary · GBInstitut de Biologia Evolutiva · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This is the first report to characterize the genotypes and subtypes of Cryptosporidium species infecting a geographically isolated population of feral Soay sheep (Ovis aries) on Hirta, St. Kilda, Scotland, during two distinct periods: (i) prior to a population crash and (ii) as host numbers increased. Cryptosporidium DNA was extracted by freeze-thawing of immunomagnetically separated (IMS) bead-oocyst complexes, and species were identified following nested-PCR-restriction fragment length polymorphism (RFLP)/PCR sequencing at two Cryptosporidium 18S rRNA loci. Two hundred fifty-five samples were analyzed, and the prevalent Cryptosporidium species in single infections were identified as C. hominis (11.4% of all samples tested), C. parvum (9%), C. xiaoi (12.5%), and C. ubiquitum (6.7%). Cryptosporidium parvum was also present with other Cryptosporidium species in 27.1% of all samples tested. Cryptosporidium parvum- and C. hominis-positive isolates were genotyped using two nested-PCR assays that amplify the Cryptosporidium glycoprotein 60 gene (GP60). GP60 gene analysis showed the presence of two Cryptosporidium genotypes, namely, C. parvum IIaA19G1R1 and C. hominis IbA10G2. This study reveals a higher diversity of Cryptosporidium species/genotypes than was previously expected. We suggest reasons for the high diversity of Cryptosporidium parasites within this isolated population and discuss the implications for our understanding of cryptosporidiosis.

Indexed as

Genetic VariationAnimalsCluster AnalysisCryptosporidiosisCryptosporidiumDNA, ProtozoanDNA, RibosomalGenes, rRNAGenotypeGlycoproteinsMolecular Sequence DataPhylogenyPolymerase Chain ReactionPolymorphism, Restriction Fragment LengthProtozoan ProteinsRNA, ProtozoanDNA, ProtozoanDNA, RibosomalGlycoproteinsProtozoan ProteinsRNA, ProtozoanRNA, Ribosomal, 18S

Identifiers

PMID23354707
PMCPMC3623215
OpenAlexW2012910114

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.