Evidence map›Paper›PMID 34645857›Full record

ArticleScientific reports2021

Whole-genome sequencing and ad hoc shared genome analysis of Staphylococcus aureus isolates from a New Zealand primary school.

Pippa Scott, Ji Zhang, Trevor Anderson, Patricia C Priest, Stephen Chambers, Helen Smith, David R Murdoch, Nigel French, Patrick J Biggs

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.1field-weighted citation impact, top 57% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. 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

9 authors at 3 institutions in 1 country.

Pippa ScottDepartment of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand. Pippa.scott@otago.ac.nz.
Ji ZhangSchool of Veterinary Science, Massey University, Palmerston North, New Zealand.
Trevor AndersonCanterbury Health Laboratories, Canterbury District Health Board, Christchurch, New Zealand.
Patricia C PriestDepartment of Preventive and Social Medicine, University of Otago, Dunedin, New Zealand.
Stephen ChambersDepartment of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand.
Helen SmithSchool of Fundamental Sciences, Massey University, Palmerston North, New Zealand.
David R MurdochDepartment of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand.
Nigel FrenchSchool of Veterinary Science, Massey University, Palmerston North, New Zealand.
Patrick J BiggsSchool of Veterinary Science, Massey University, Palmerston North, New Zealand.
Massey University · NZUniversity of Otago · NZCanterbury Health Laboratories · NZ

Funding

Swiss National Science Foundation P2BEP3_152102
6 · The paper itself

Abstract

Epidemiological studies of communicable diseases increasingly use large whole-genome sequencing (WGS) datasets to explore the transmission of pathogens. It is important to obtain an initial overview of datasets and identify closely related isolates, but this can be challenging with large numbers of isolates and imperfect sequencing. We used an ad hoc whole-genome multi locus sequence typing method to summarise data from a longitudinal study of Staphylococcus aureus in a primary school in New Zealand. Each pair of isolates was compared and the number of genes where alleles differed between isolates was tallied to produce a matrix of "allelic differences". We plotted histograms of the number of allelic differences between isolates for: all isolate pairs; pairs of isolates from different individuals; and pairs of isolates from the same individual. 340 sequenced isolates were included, and the ad hoc shared genome contained 445 genes. There were between 0 and 420 allelic differences between isolate pairs and the majority of pairs had more than 260 allelic differences. We found many genetically closely related S. aureus isolates from single individuals and a smaller number of closely-related isolates from separate individuals. Multiple S. aureus isolates from the same individual were usually very closely related or identical over the ad hoc shared genome. Siblings carried genetically similar, but not identical isolates. An ad hoc shared genome approach to WGS analysis can accommodate imperfect sequencing of the included isolates, and can provide insights into relationships between isolates in epidemiological studies with large WGS datasets containing diverse isolates.

Indexed as

Whole Genome SequencingAllelesBacteremiaChildComputational BiologyFemaleGenetic VariationGenomeGenome, BacterialHumansLongitudinal StudiesMaleMethicillin-Resistant Staphylococcus aureusMultilocus Sequence TypingNew ZealandSchools

Identifiers

PMID34645857
PMCPMC8514452
OpenAlexW3206538607

What OpenQuestion holds

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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 OpenQuestion graph.