Evidence map›Paper›PMID 38184647›Full record

ArticleAntimicrobial resistance and infection control2024

Investigating environmental transmission to resolve a Bacillus cereus group outbreak in a neonatal intensive care unit using core genome multilocus sequence typing.

Hauke Tönnies, Axel Heep, Jörg Herrmann, Matthias Lange, Alexander Mellmann, Axel Hamprecht

Open access · goldAbstract read
In one paragraph

Article in Antimicrobial resistance and infection control, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

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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

4 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
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  3. Genomic epidemiology of aMicrobial genomics · 2025
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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

6 authors at 3 institutions in 1 country.

Hauke TönniesInstitute of Hygiene, University Hospital Münster, Münster, Germany. hauke.toennies@ukmuenster.de.
Axel HeepDepartment of Pediatrics, Elisabeth Children's Hospital, University of Oldenburg, Oldenburg, Germany.
Jörg HerrmannInstitute of Hygiene, University Hospital Oldenburg, Oldenburg, Germany.
Matthias LangeDepartment of Pediatrics, Elisabeth Children's Hospital, University of Oldenburg, Oldenburg, Germany.
Alexander Mellmann *Institute of Hygiene, University Hospital Münster, Münster, Germany.
Axel Hamprecht *Institute of Medical Microbiology and Virology, University Hospital Oldenburg, Oldenburg, Germany.
Carl von Ossietzky Universität Oldenburg · DEKlinikum Oldenburg · DEUniversity Hospital Münster · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe analyzed an outbreak of Bacillus cereus group (Bcg) at a single-center neonatal intensive care unit level IV by conducting comprehensive sampling of both patients and the environment.

methodsBetween 06/2020 and 10/2021, all Bcg isolates identified by both regular colonization screening and additional sampling of the environment were subjected to whole-genome sequencing, followed by in vitro extraction of MLST ST, resistance genes and virulence factors. Using publicly available genome sequences, we defined an ad hoc core genome multilocus sequence typing (cgMLST) scheme comprising 2759 target genes for Bcg typing, which we applied to the detected isolates. We have compared the results with a stable cgMLST that was published in the meantime and completed the investigation with a SNP analysis.

resultsWe analyzed 28 Bcg isolates from patient and environmental samples using MLST and cgMLST. This revealed multiple sequence types, with ST127 being the most common (n = 13). Both cgMLST schemes grouped ten of the 13 ST127 isolates into a cluster, including two invasive isolates from two different patients and several environmental samples. SNP analysis postulated a screen from a ventilation machine as a possible reservoir.

conclusionIn sensitive settings such as neonatal intensive care units, considering the environment in outbreak analyses is crucial, especially when investigating potential transmission routes through shared devices. When dealing with widespread bacteria such as Bcg, high-resolution typing techniques are necessary. In this study, we successfully resolved an outbreak of Bcg infections using a custom cgMLST scheme combined with a SNP analysis.

Indexed as

BacillusBacillus cereusDisease OutbreaksHumansInfant, NewbornIntensive Care Units, NeonatalMultilocus Sequence TypingBacillus cereusBacillus cereus groupcgMLSTOutbreakWGS

Identifiers

PMID38184647
PMCPMC10771705
OpenAlexW4390646440

What OpenQuestion holds

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LicenceCC BY
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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.