Aim: This study reports on a surveillance in an Italian hospital focused on carbapenemase-producing Escherichia coli (CP-Ec). Materials & methods: Eighteen isolates (nine from clinical specimens and nine from rectal swab) were characterized for antibiotic susceptibilities, typing features, main carbapenemase, extended-spectrum ß-lactamases (ESBLs) and other bla genes, and their transferability by conjugation and transformation. Results: An increase in CP-Ec isolates was observed during 3-year surveillance period. Compared with the clinical isolates, all belonging to one sequence type (ST), ST131, those from rectal swab were very heterogeneous and belonged to eight STs. Transfer data confirmed the role of conjugative plasmids in the spreading of carbapenemase genes. Conclusion: The prevalence of CP-Ec in Italy has risen, with a substantial increase over the last year.

Increase and diversity of carbapenemase-producing Escherichia coli isolates, Italy / Simoni, S; Caucci, Sara; Brenciani, A; Morroni, G; Giovanetti, E; Menzo, S; Facinelli, B; Mingoia, M.. - In: FUTURE MICROBIOLOGY. - ISSN 1746-0913. - STAMPA. - 14:2(2019), pp. 1035-1042. [10.2217/fmb-2019-0069]

Increase and diversity of carbapenemase-producing Escherichia coli isolates, Italy

Simoni S
Primo
;
CAUCCI, Sara
Secondo
;
Brenciani A;Morroni G;Giovanetti E;Menzo S;Facinelli B
Penultimo
;
Mingoia M.
Ultimo
2019-01-01

Abstract

Aim: This study reports on a surveillance in an Italian hospital focused on carbapenemase-producing Escherichia coli (CP-Ec). Materials & methods: Eighteen isolates (nine from clinical specimens and nine from rectal swab) were characterized for antibiotic susceptibilities, typing features, main carbapenemase, extended-spectrum ß-lactamases (ESBLs) and other bla genes, and their transferability by conjugation and transformation. Results: An increase in CP-Ec isolates was observed during 3-year surveillance period. Compared with the clinical isolates, all belonging to one sequence type (ST), ST131, those from rectal swab were very heterogeneous and belonged to eight STs. Transfer data confirmed the role of conjugative plasmids in the spreading of carbapenemase genes. Conclusion: The prevalence of CP-Ec in Italy has risen, with a substantial increase over the last year.
2019
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/269541
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 6
  • Scopus 12
  • ???jsp.display-item.citation.isi??? 12
social impact