Characterization of globally spread Escherichia coli ST131 isolates (1991 to 2010)

Ângela Novais, João Pires, Helena Ferreira, Luísa Costa, Carolina Montenegro, Claudia Vuotto, Gianfranco Donelli, Teresa M. Coque, Luísa Peixe

Research output: Contribution to journalArticlepeer-review


The characterization of a broad representative sample of ST131 Escherichia coli isolates from different origins and settings (1991 to 2010) revealed that this clonal group has likely diversified recently and that the expansion of particular variants has probably been favored by the capture of diverse, multidrug-resistant IncFII plasmids (pC15-1a, pEK499, pKF3-140-like). The low ability to adhere and to grow as biofilm that was detected in this study suggests unknown mechanisms for the persistence of this clonal group which need to be further explored.

Original languageEnglish
Pages (from-to)3973-3976
Number of pages4
JournalAntimicrobial Agents and Chemotherapy
Issue number7
Publication statusPublished - Jul 2012

ASJC Scopus subject areas

  • Pharmacology (medical)
  • Pharmacology
  • Infectious Diseases


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