Evidence map›Paper›PMID 33349664›Full record

ArticleNature microbiology2021

Stepwise evolution of Salmonella Typhimurium ST313 causing bloodstream infection in Africa.

Caisey V Pulford, Blanca M Perez-Sepulveda, Rocío Canals, Jessica A Bevington, Rebecca J Bengtsson, Nicolas Wenner, Ella V Rodwell, Benjamin Kumwenda, Xiaojun Zhu, Rebecca J Bennett and 21 more

Open access · hybridAbstract read
In one paragraph

Article in Nature microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 1 pooled it
12.3field-weighted citation impact, top 1% 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

97 citing papers in PubMed, 1 synthesis or guideline pooled it, 143 citations in OpenAlex.

  1. Pooled it
  2. Trial
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  19. Comparative genomics ofVirulence · 2025
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37 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

31 authors at 5 institutions in 3 countries.

Caisey V PulfordInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0003-2500-9119
Blanca M Perez-SepulvedaInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
Rocío CanalsInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0001-7079-7690
Jessica A BevingtonInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0002-8434-1368
Rebecca J BengtssonInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
Nicolas WennerInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
Ella V RodwellInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
Benjamin KumwendaUniversity of Malawi, College of Medicine, Blantyre, Malawi.ORCID http://orcid.org/0000-0002-5775-7528
Xiaojun ZhuInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0002-1478-8500
Rebecca J BennettInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0001-5290-5109
George E StenhouseInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0002-9681-9242
P Malaka De SilvaInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
Hermione J WebsterInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
Jose A BengoecheaWellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK.ORCID http://orcid.org/0000-0002-9677-8751
Amy DumiganWellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK.ORCID http://orcid.org/0000-0003-3840-2147
Alicia Tran-DienInstitut Pasteur, Unité des Bactéries Pathogènes Entériques, Paris, France.
Reenesh PrakashMalawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi.
Happy C BandaMalawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi.
Lovemore AlufandikaMalawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi.
Mike P MautangaMalawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi.
Arthur Bowers-BarnardInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
Alexandra Y BeliavskaiaInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
Alexander V PredeusInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0002-2750-1599
Will P M RoweInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
Alistair C DarbyInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
Neil HallEarlham Institute, Norwich Research Park, Norwich, UK.
François-Xavier WeillInstitut Pasteur, Unité des Bactéries Pathogènes Entériques, Paris, France.ORCID http://orcid.org/0000-0001-9941-5799
Melita A GordonMalawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi.
Nicholas A FeaseyMalawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi.
Kate S BakerInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0001-5850-1949
Jay C D HintonInstitute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK. jay.hinton@liverpool.ac.uk.ORCID http://orcid.org/0000-0003-2671-6026
University of Liverpool · GBInstitut Pasteur · FRQueen's University Belfast · GBNorwich Research Park · GBUniversity of Malawi · MW

Funding

Biotechnology and Biological Sciences Research Council BB/CCG1720/1Biotechnology and Biological Sciences Research Council BB/CSP17270/1Biotechnology and Biological Sciences Research Council BBS/OS/GC/000009DMedical Research Council MR/R020787/1Wellcome Trust 106690Wellcome Trust 106914
6 · The paper itself

Abstract

Bloodstream infections caused by nontyphoidal Salmonella are a major public health concern in Africa, causing ~49,600 deaths every year. The most common Salmonella enterica pathovariant associated with invasive nontyphoidal Salmonella disease is Salmonella Typhimurium sequence type (ST)313. It has been proposed that antimicrobial resistance and genome degradation has contributed to the success of ST313 lineages in Africa, but the evolutionary trajectory of such changes was unclear. Here, to define the evolutionary dynamics of ST313, we sub-sampled from two comprehensive collections of Salmonella isolates from African patients with bloodstream infections, spanning 1966 to 2018. The resulting 680 genome sequences led to the discovery of a pan-susceptible ST313 lineage (ST313 L3), which emerged in Malawi in 2016 and is closely related to ST313 variants that cause gastrointestinal disease in the United Kingdom and Brazil. Genomic analysis revealed degradation events in important virulence genes in ST313 L3, which had not occurred in other ST313 lineages. Despite arising only recently in the clinic, ST313 L3 is a phylogenetic intermediate between ST313 L1 and L2, with a characteristic accessory genome. Our in-depth genotypic and phenotypic characterization identifies the crucial loss-of-function genetic events that occurred during the stepwise evolution of invasive S. Typhimurium across Africa.

Indexed as

Evolution, MolecularAfricaDrug Resistance, BacterialGenetic VariationGenome, BacterialGenotypeHumansPhenotypePhylogenyPlasmidsPseudogenesSalmonella InfectionsSalmonella typhimuriumSepsisVirulence

Identifiers

PMID33349664
PMCPMC8018540
OpenAlexW3114188089

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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.