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Characterization of Extended-Spectrum β-Lactamase-Producing Shigella sonnei in Spain: Expanding the Geographic Distribution of Sequence Type 152/CTX-M-27 Clone.

ABSTRACT: We describe the first occurrence in Spain of community cases of CTX-M-27-producing Shigella sonnei sequence type 152 (ST152), resistant to quinolones and azithromycin. The cases included adult males and also one pediatric case. The isolates were clustered together with an Australian isolate and differed from other outbreak-causing strains in England by more than 50 alleles. They carried the bla_CTX-M-27 gene on an 83-Kb F2:A-:B- plasmid, similar to that found in a British isolate.

SUBMITTER: Lopez-Cerero L

PROVIDER: S-EPMC9295536 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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Characterization of Extended-Spectrum β-Lactamase-Producing Shigella sonnei in Spain: Expanding the Geographic Distribution of Sequence Type 152/CTX-M-27 Clone.

López-Cerero Lorena L Stolz Emilio E Pulido Marina R MR Pascual Alvaro A

Antimicrobial agents and chemotherapy 20220628 7

We describe the first occurrence in Spain of community cases of CTX-M-27-producing Shigella sonnei sequence type 152 (ST152), resistant to quinolones and azithromycin. The cases included adult males and also one pediatric case. The isolates were clustered together with an Australian isolate and differed from other outbreak-causing strains in England by more than 50 alleles. They carried the blaCTX-M-27 gene on an 83-Kb F2:A-:B- plasmid, similar to that found in a British isolat ...[more]

PMID: 35762798

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Prolonged Outbreak of Multidrug-Resistant Shigella sonnei Harboring blaCTX-M-27 in Victoria, Australia.

Project description:In Australia, cases of shigellosis usually occur in returned travelers from regions of shigellosis endemicity or in men who have sex with men. Resistance to multiple antibiotics has significantly increased in Shigella sonnei isolates and represents a significant public health concern. We investigate an outbreak of multidrug-resistant S. sonnei in Victoria, Australia. We undertook whole-genome sequencing of 54 extended-spectrum-beta-lactamase (ESBL)-producing S. sonnei isolates received at the Microbiological Diagnostic Unit Public Health Laboratory between January 2019 and March 2020. The population structure and antimicrobial resistance profiles were identified by genomic analyses, with 73 previously characterized Australian S. sonnei isolates providing context. Epidemiological data, including age and sex of the shigellosis cases, were also collected. There was a significant increase in cases of ESBL S. sonnei from July 2019. Most of the ESBL S. sonnei isolates (65%) fell within a single cluster that was predominantly comprised of male cases that were characterized by the presence of the blaCTX-M-27 gene conferring resistance to extended-spectrum cephalosporins. These isolates were also multidrug resistant, including resistance to azithromycin and co-trimoxazole and reduced susceptibility to ciprofloxacin. Our data uncovered a prolonged clonal outbreak of ESBL S. sonnei infection that was likely first introduced by returned travelers and has subsequently been circulating locally in Australia. The emergence of a local outbreak of ESBL S. sonnei with a multidrug-resistant profile, including reduced susceptibility to ciprofloxacin, represents a significant public health threat.

| S-EPMC7674062 | biostudies-literature

Novel extended-spectrum beta-lactamase in Shigella sonnei.

Project description: Not available

| S-EPMC2725971 | biostudies-literature

Identification of CTX-M-14 extended-spectrum beta-lactamase in clinical isolates of Shigella sonnei, Escherichia coli, and Klebsiella pneumoniae in Korea.

Project description:CTX-M-14 beta-lactamase was identified in a stool isolate of Shigella sonnei and in blood isolates of Escherichia coli (one isolate) and Klebsiella pneumoniae (two isolates) from different parts of Korea. The amino acid sequence differed by one amino acid from CTX-M-9 (Ala-231--> Val) and was identical to that of beta-lactamases recently found in China and Japan.

| S-EPMC88424 | biostudies-literature

Novel chimeric beta-lactamase CTX-M-64, a hybrid of CTX-M-15-like and CTX-M-14 beta-lactamases, found in a Shigella sonnei strain resistant to various oxyimino-cephalosporins, including ceftazidime.

Project description:The plasmid-mediated novel beta-lactamase CTX-M-64 was first identified in Shigella sonnei strain UIH-1, which exhibited resistance to cefotaxime (MIC, 1,024 microg/ml) and ceftazidime (MIC, 32 microg/ml). The amino acid sequence of CTX-M-64 showed a chimeric structure of a CTX-M-15-like beta-lactamase (N- and C-terminal moieties) and a CTX-M-14-like beta-lactamase (central portion, amino acids 63 to 226), suggesting that it originated by homologous recombination between the corresponding genes. The introduction of a recombinant plasmid carrying bla(CTX-M-64) conferred resistance to cefotaxime in Escherichia coli, and the activities of cefotaxime and ceftazidime were restored in the presence of clavulanic acid. Of note, CTX-M-64 production could also confer consistent resistance to ceftazidime, which differs from the majority of CTX-M-type enzymes, which poorly hydrolyze ceftazidime. These results were consistent with the kinetic parameters determined with the purified CTX-M-64 enzyme. The bla(CTX-M-64) gene was flanked upstream by an ISEcp1 sequence and downstream by an orf477 sequence. The sequence of the 45-bp spacer region between the right inverted repeat (IRR) of ISEcp1 and bla(CTX-M-64) was exactly identical to that of ISEcp1-bla(CTX-M-15-like). Moreover, the presence of a putative IRR of ISEcp1 at the right end of truncated orf477 is indicative of an ISEcp1-mediated transposition event in the bla(CTX-M-64) gene. The emergence of CTX-M-64 by probable homologous recombination would suggest the natural potential of an alternative mechanism for the diversification of CTX-M-type beta-lactamases.

| S-EPMC2612187 | biostudies-literature

Shigella sonnei.

Project description: Not available

| S-EPMC7611039 | biostudies-literature

MDR Shigella sonnei in Spain: an ever-evolving emerging threat?

Project description:BackgroundSeven CTX-M-27-producing Shigella sonnei strains were isolated at the University Hospital Virgen del Rocío (Seville, Spain) microbiology service from October to November 2021.ObjectivesTo offer extensive information on the microbiological and molecular epidemiology results of the seven S. sonnei isolates and compare them with other previously documented CTX-M-27-producing S. sonnei associated with MSM transmission.MethodsS. sonnei isolated from stool samples of patients with acute diarrhoea were identified through biochemical and serological typing. Whole characterization of the seven isolates was performed by sequencing with MinION Mk1C followed by genomic and molecular analysis.ResultsAll the isolates were resistant to penicillins, cephalosporins, fluoroquinolones, cotrimoxazole and azithromycin. Sequencing showed the presence of several resistance determinants, outstanding bla CTX-M-27, azithromycin resistance genes [ermB and mph(A)], qnrB19 and mutations in the QRDRs. All isolates belonged to the same hierarchical clustering of cgMLST (HierCC) with five allele distance (HC5) scheme v1 from EnteroBase. However, they presented differences in plasmid composition, with all seven isolates harbouring IncFII, IncB/O/K/Z and ColE1-like while SH2, SH6 and SH7 had IncFIB only. Our isolates were closely related to others from Spain (HC5; 98748), Australia (HC5; 98748) and the UK (HC5; 98748), which were also associated with MSM transmission. Nevertheless, the structure of the non-chromosomal genetic elements and the genetic context of bla CTX-M-27 presented a certain variability compared with isolates from other countries and among them.ConclusionsThis study confirms the emergence of CTX-M-27-producing S. sonnei (ST152) associated with MSM transmission in Spain, adding it to the Europe outbreak list and reinforcing the necessity of active surveillance and control of this high-risk clone.

| S-EPMC9442613 | biostudies-literature

Genetic Characterization of Extensively Drug-Resistant Shigella sonnei Infections, Spain, 2021-2022.

Project description:In 2022, the United Kingdom reported an increase in drug resistance in Shigella sonnei isolates. We report 33 cases in Spain genetically related to the UK cases and 4 cases with similar antimicrobial resistance profiles infected with genetically distant strains. Our results suggest circulation of multiple genetic clusters of multidrug-resistant S. sonnei in Spain.

| S-EPMC10617328 | biostudies-literature

A Shigella sonnei clone with extensive drug resistance associated with waterborne outbreaks in China.

Project description:Antimicrobial resistance of Shigella sonnei has become a global concern. Here, we report a phylogenetic group of S. sonnei with extensive drug resistance, including a combination of multidrug resistance, coresistance to ceftriaxone and azithromycin (cefRaziR), reduced susceptibility to fluoroquinolones, and even colistin resistance (colR). This distinct clone caused six waterborne shigellosis outbreaks in China from 2015 to 2020. We collect 155 outbreak isolates and 152 sporadic isolates. The cefRaziR isolates, including outbreak strains, are mainly distributed in a distinct clade located in global Lineage III. The outbreak strains form a recently derived monophyletic group that may have emerged circa 2010. The cefRaziR and colR phenotypes are attributed to the acquisition of different plasmids, particularly the IncB/O/K/Z plasmid coharboring the blaCTX-M-14, mphA, aac(3)-IId, dfrA17, aadA5, and sul1 genes and the IncI2 plasmid with an mcr-1 gene. Genetic analyses identify 92 accessory genes and 60 single-nucleotide polymorphisms associated with the cefRaziR phenotype. Surveillance of this clone is required to determine its dissemination and threat to global public health.

| S-EPMC9709761 | biostudies-literature

Sequence variation in Shigella sonnei (Sonnei), a pathogenic clone of Escherichia coli, over four continents and 41 years.

Project description:The genetic variation within a bacterial clone (known as Shigella sonnei but in effect a clone of Escherichia coli) was examined by studying 46 clinical isolates that were epidemiologically unassociated and isolated from patients in different countries over a period of 41 years (1950 to 1991). Restriction fragment length polymorphism and DNA sequencing of two housekeeping genes, mglB and gnd, in 10 strains revealed only one nucleotide substitution in the mglB gene in one strain. Ribotyping of 31 strains recovered from five countries over the 41 years proved more sensitive, detecting eight polymorphic sites with worldwide change in frequency of alleles at one site over the period studied.

| S-EPMC263127 | biostudies-other

Macrolide-resistant Shigella sonnei.

Project description:Shigella sonnei UCN59, isolated during an outbreak of S. sonnei in January 2007, was resistant to azithromycin (MIC 64 mg/L). The isolate contained a plasmid-borne mph(A) gene encoding a macrolide 2 -phosphotransferase that inactivates macrolides. Emergence of the mph(A) gene in S. sonnei may limit usefulness of azithromycin for treatment of shigellosis.

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