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Clonal spread of pESI-positive multidrug-resistant ST32 Salmonella enterica serovar Infantis isolates among broilers and humans in Slovenia [Elektronski vir]Papić, Bojan ...Salmonella enterica subsp. enterica serovar Infantis is the most prevalent serovar found in broilers and broiler meat and is among the top five serovars responsible for human infections in Europe. In ... 2008, a multidrug-resistant S. Infantis isolate emerged in Israel with a mosaic megaplasmid named pESI, associated with increased virulence, biofilm formation, and multidrug resistance. Since then, S. Infantis clones with pESI-like plasmids have been reported worldwide, replacing pESI-free clones. Here, we typed 161 S. Infantis isolates of poultry (n = 133) and human clinical (n = 28) origin using whole-genome sequencing. The isolates were collected between 2007 and 2021. In addition, we performed PacBio/Illumina sequencing for two representative pESI-like plasmids and compared them with publicly available sequences. All isolates belonged to sequence type 32 (ST32), except for one isolate that represented a novel single-locus variant of ST32. Core genome MLST (cgMLST) analysis revealed 14 clusters of genetically closely related isolates, of which four suggested broiler-to-human transmission of S. Infantis. pESI-like plasmids were present in 148/161 (91.9%) isolates; all were highly similar to the publicly available pESI-like sequences but lacked extended-spectrum beta-lactamase (ESBL) genes. PacBio/Illumina hybrid assembly allowed the reconstruction of two novel complete pESI variants. The present study revealed that the multidrug-resistant, pESI-positive S. Infantis clone became the predominant S. Infantis clone in Slovenian broilers and humans during the last decade. Continued surveillance of resistant S. Infantis clones along the food chain is needed to guide public health efforts.Source: Microbiology spectrum [Elektronski vir]. - ISSN 2165-0497 (Vol. 10, no. 6, [article no.] e02481-22, 2022, str. 1-9)Type of material - e-article ; adult, seriousPublish date - 2022Language - englishCOBISS.SI-ID - 130438147
Author
Papić, Bojan |
Kušar, Darja, 1977- |
Mićunović, Jasna |
Pirš, Mateja, 1974- |
Ocepek, Matjaž |
Avberšek, Jana
Topics
Salmonella |
Drug Resistance, Multiple |
Poultry |
Humans
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Papić, Bojan | 38144 |
Kušar, Darja, 1977- | 24296 |
Mićunović, Jasna | 11879 |
Pirš, Mateja, 1974- | 31399 |
Ocepek, Matjaž | 11133 |
Avberšek, Jana | 28448 |
Source: Personal bibliographies
and: SICRIS
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