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Cointe A, Bizot E, Delannoy S, Fach P, Bidet P, Birgy A, Weill FX, Lefèvre S, Mariani-Kurkdjian P, Bonacorsi S. Emergence of New ST301 Shiga Toxin-Producing Escherichia coli Clones Harboring Extra-Intestinal Virulence Traits in Europe. Toxins (Basel) 2021; 13:toxins13100686. [PMID: 34678979 PMCID: PMC8537712 DOI: 10.3390/toxins13100686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 11/16/2022] Open
Abstract
O80:H2 enterohemorrhagic Escherichia coli (EHEC) of sequence type ST301 is one of the main serotypes causing European hemolytic and uremic syndrome, but also invasive infections, due to extra-intestinal virulence factors (VFs). Here, we determined whether other such heteropathotypes exist among ST301. EnteroBase was screened for ST301 strains that were included in a general SNP-phylogeny. French strains belonging to a new heteropathotype clone were sequenced. ST, hierarchical clusters (HC), serotype, resistome, and virulome were determined using EnteroBase, the CGE website, and local BLAST. The ST301 general phylogeny shows two groups. Group A (n = 25) is mainly composed of enteropathogenic E. coli, whereas group B (n = 55) includes mostly EHEC. Three serotypes, O186:H2, O45:H2 and O55:H9, share the same virulome as one of the O80:H2 sub-clones from which they derive subsequent O-antigen switches. The O55:H9 clone, mainly present in France (n = 29), as well as in the UK (n = 5) and Germany (n = 1), has a low background of genetic diversity (four HC20), although it has three Stx subtypes, an H-antigen switch, and genes encoding the major extra-intestinal VF yersiniabactin, and extended-spectrum beta-lactamases. Diverse heteropathotype clones genetically close to the O80:H2 clone are present among the ST301, requiring close European monitoring, especially the virulent O55:H9 clone.
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Affiliation(s)
- Aurélie Cointe
- Service de Microbiologie, Centre National de Référence Escherichia coli, AP-HP, Hôpital Robert-Debré, Université de Paris, IAME, UMR 1137, INSERM, 75018 Paris, France; (E.B.); (P.B.); (A.B.); (P.M.-K.); (S.B.)
- Correspondence:
| | - Etienne Bizot
- Service de Microbiologie, Centre National de Référence Escherichia coli, AP-HP, Hôpital Robert-Debré, Université de Paris, IAME, UMR 1137, INSERM, 75018 Paris, France; (E.B.); (P.B.); (A.B.); (P.M.-K.); (S.B.)
| | - Sabine Delannoy
- Platform Identy Path, Food Safety Laboratory, ANSES, Université Paris-Est, 94701 Maisons-Alfort, France; (S.D.); (P.F.)
| | - Patrick Fach
- Platform Identy Path, Food Safety Laboratory, ANSES, Université Paris-Est, 94701 Maisons-Alfort, France; (S.D.); (P.F.)
| | - Philippe Bidet
- Service de Microbiologie, Centre National de Référence Escherichia coli, AP-HP, Hôpital Robert-Debré, Université de Paris, IAME, UMR 1137, INSERM, 75018 Paris, France; (E.B.); (P.B.); (A.B.); (P.M.-K.); (S.B.)
| | - André Birgy
- Service de Microbiologie, Centre National de Référence Escherichia coli, AP-HP, Hôpital Robert-Debré, Université de Paris, IAME, UMR 1137, INSERM, 75018 Paris, France; (E.B.); (P.B.); (A.B.); (P.M.-K.); (S.B.)
| | - François-Xavier Weill
- Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur, Unités des Bactéries Pathogènes Entériques, 75015 Paris, France; (F.-X.W.); (S.L.)
| | - Sophie Lefèvre
- Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur, Unités des Bactéries Pathogènes Entériques, 75015 Paris, France; (F.-X.W.); (S.L.)
| | - Patricia Mariani-Kurkdjian
- Service de Microbiologie, Centre National de Référence Escherichia coli, AP-HP, Hôpital Robert-Debré, Université de Paris, IAME, UMR 1137, INSERM, 75018 Paris, France; (E.B.); (P.B.); (A.B.); (P.M.-K.); (S.B.)
| | - Stéphane Bonacorsi
- Service de Microbiologie, Centre National de Référence Escherichia coli, AP-HP, Hôpital Robert-Debré, Université de Paris, IAME, UMR 1137, INSERM, 75018 Paris, France; (E.B.); (P.B.); (A.B.); (P.M.-K.); (S.B.)
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Cointe A, Birgy A, Mariani-Kurkdjian P, Liguori S, Courroux C, Blanco J, Delannoy S, Fach P, Loukiadis E, Bidet P, Bonacorsi S. Emerging Multidrug-Resistant Hybrid Pathotype Shiga Toxin-Producing Escherichia coli O80 and Related Strains of Clonal Complex 165, Europe. Emerg Infect Dis 2019; 24:2262-2269. [PMID: 30457551 PMCID: PMC6256387 DOI: 10.3201/eid2412.180272] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Enterohemorrhagic Escherichia coli serogroup O80, involved in hemolytic uremic syndrome associated with extraintestinal infections, has emerged in France. We obtained circularized sequences of the O80 strain RDEx444, responsible for hemolytic uremic syndrome with bacteremia, and noncircularized sequences of 35 O80 E. coli isolated from humans and animals in Europe with or without Shiga toxin genes. RDEx444 harbored a mosaic plasmid, pR444_A, combining extraintestinal virulence determinants and a multidrug resistance-encoding island. All strains belonged to clonal complex 165, which is distantly related to other major enterohemorrhagic E. coli lineages. All stx-positive strains contained eae-ξ, ehxA, and genes characteristic of pR444_A. Among stx-negative strains, 1 produced extended-spectrum β-lactamase, 1 harbored the colistin-resistance gene mcr1, and 2 possessed genes characteristic of enteropathogenic and pyelonephritis E. coli. Because O80-clonal complex 165 strains can integrate intestinal and extraintestinal virulence factors in combination with diverse drug-resistance genes, they constitute dangerous and versatile multidrug-resistant pathogens.
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