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“Does the Salmonella Genomic Island 1 (SGI1) confer invasiveness properties to human isolates?”

Overview of attention for article published in BMC Infectious Diseases, December 2017
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Title
“Does the Salmonella Genomic Island 1 (SGI1) confer invasiveness properties to human isolates?”
Published in
BMC Infectious Diseases, December 2017
DOI 10.1186/s12879-017-2847-1
Pubmed ID
Authors

Claire de Curraize, Lucie Amoureux, Julien Bador, Angélique Chapuis, Eliane Siebor, Claire Clément, Juliette Sauge, Ludwig-Serge Aho-Glélé, Catherine Neuwirth

Abstract

In the eighties, a multidrug resistant clone of Salmonella Typhimurium DT104 emerged in UK and disseminated worldwide. This clone harbored a Salmonella genomic island 1 (SGI1) that consists of a backbone and a multidrug resistant region encoding for penta-resistance (ampicillin, chloramphenicol/florfenicol, streptomycin/spectinomycin, sulphonamides and tetracycline (ACSSuT)). Several authors suggested that SGI1 might have a potential role in enhancement of virulence properties of Salmonella enterica. The aim of this study was to investigate whether nontyphoidal S. enterica isolates carrying SGI1 cause more severe illness than SGI1 free ones in humans. From 2011 to 2016, all patients infected with nontyphoidal S. enterica in our hospital were retrospectively included. All nontyphoidal S. enterica isolates preserved in our University Hospital (Dijon, France) were screened for the presence of SGI1. Clinical and biological data of patients were retrospectively collected to evaluate illness severity. Statistical analysis of data was performed by Kruskal-Wallis test or Fisher's exact test for univariate analysis, and by logistic regression for multivariate analysis. A total of 100 isolates of S. enterica (22 serovars) were collected. Twelve isolates (12%) belonging to 4 serovars harbored SGI1: S. Typhimurium, S. Infantis, S. Kentucky, S. St Paul. The severity of the disease was age-related (for invasive infection, sepsis and inflammatory response) and was associated with immunosuppression (for invasive infection, sepsis and bacteremia) but not with the presence of SGI1 or with antimicrobial resistance. A rather high proportion (12%) of human clinical isolates belonging to various serovars (for the first time serovar St Paul) and harboring various antimicrobial resistance profile carried SGI1. Diseases due to SGI1-positive S. enterica or to antimicrobial resistant isolates were not more severe than the others. This first clinical observation should be confirmed by a multicenter and prospective study.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 42 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 42 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 9 21%
Student > Doctoral Student 5 12%
Student > Bachelor 5 12%
Researcher 3 7%
Professor 2 5%
Other 7 17%
Unknown 11 26%
Readers by discipline Count As %
Medicine and Dentistry 9 21%
Agricultural and Biological Sciences 7 17%
Biochemistry, Genetics and Molecular Biology 5 12%
Environmental Science 2 5%
Immunology and Microbiology 2 5%
Other 3 7%
Unknown 14 33%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 December 2017.
All research outputs
#22,764,772
of 25,382,440 outputs
Outputs from BMC Infectious Diseases
#7,317
of 8,603 outputs
Outputs of similar age
#384,359
of 444,941 outputs
Outputs of similar age from BMC Infectious Diseases
#127
of 154 outputs
Altmetric has tracked 25,382,440 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 8,603 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 10.7. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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We're also able to compare this research output to 154 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.