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Multidrug-Resistant Salmonella enterica Serovar Rissen Clusters Detected in Azores Archipelago, Portugal

dc.contributor.authorSilveira, Leonor
dc.contributor.authorPinto, Miguel
dc.contributor.authorIsidro, Joana
dc.contributor.authorPista, Ângela
dc.contributor.authorThemudo, Patrícia
dc.contributor.authorVieira, Luís
dc.contributor.authorMachado, Jorge
dc.contributor.authorGomes, João Paulo
dc.date.accessioned2020-04-28T14:18:57Z
dc.date.available2020-04-28T14:18:57Z
dc.date.issued2019-12-14
dc.descriptionFree PMC article: https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31950026/pt_PT
dc.description.abstractGastrointestinal infections caused by nontyphoidal Salmonella (NTS) remain one of the main causes of foodborne illness worldwide. Within the multiple existing Salmonella enterica serovars, the serovar Rissen is rarely reported, particularly as a cause of human salmonellosis. Between 2015 and 2017, the Portuguese National Reference Laboratory of Gastrointestinal Infections observed an increase in the number of clinical cases caused by multidrug-resistant (MDR) S. enterica serovar Rissen, particularly from the Azores archipelago. In the present study, we analyzed by whole genome sequencing (WGS) all clinical, animal, food, and environmental isolates received up to 2017 in the Portuguese Reference Laboratories. As such, through a wgMLST-based gene-by-gene analysis, we aimed to identify potential epidemiological clusters linking clinical and samples from multiple sources, while gaining insight into the genetic diversity of S. enterica serovar Rissen. We also investigated the genetic basis driving the observed multidrug resistance. By integrating 60 novel genomes with all publicly available serovar Rissen genomes, we observed a low degree of genetic diversity within this serovar. Nevertheless, the majority of Portuguese isolates showed high degree of genetic relatedness and a potential link to pork production. An in-depth analysis of these isolates revealed the existence of two major clusters from the Azores archipelago composed of MDR isolates, most of which were resistant to at least five antimicrobials. Considering the well-known spread of MDR between gastrointestinal bacteria, the identification of MDR circulating clones should constitute an alert to public health authorities. Finally, this study constitutes the starting point for the implementation of the "One Health" approach for Salmonella surveillance in Portugal.pt_PT
dc.description.sponsorshipThis work was partially funded by the GenomePT project (POCI-01-0145- FEDER-022184), supported by COMPETE 2020–Operational Programme for Competitiveness and Internationalisation (POCI), Lisboa Portugal Regional Operational Programme (Lisboa2020), and Algarve Portugal Regional Operational Programme (CRESC Algarve2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF) and by the Fundação para a Ciência e a Tecnologia (FCT)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationInt J Genomics. 2019 Dec 14;2019:1860275. doi: 10.1155/2019/1860275. eCollection 2019. [Epub ahead of print]pt_PT
dc.identifier.doi10.1155/2019/1860275pt_PT
dc.identifier.issn2314-436X
dc.identifier.urihttp://hdl.handle.net/10400.18/6538
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherHindawipt_PT
dc.relation.publisherversionhttps://www.hindawi.com/journals/ijg/2019/1860275/pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSalmonellapt_PT
dc.subjectNontyphoidal Salmonellapt_PT
dc.subjectSalmonella entericapt_PT
dc.subjectGastrointestinal Infectionspt_PT
dc.subjectAzores Archipelagopt_PT
dc.subjectPortugalpt_PT
dc.subjectInfecções Gastrointestinaispt_PT
dc.titleMultidrug-Resistant Salmonella enterica Serovar Rissen Clusters Detected in Azores Archipelago, Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage1860275pt_PT
oaire.citation.titleInternational Journal of Genomicspt_PT
oaire.citation.volume2019pt_PT
rcaap.embargofctDe acordo com política editorial da revista.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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