Community-onset disease caused by Citrobacter freundii producing a novel CTX-M β-lactamase, CTX-M-30, in Canada

Baha Abdalhamid, Johann D.D. Pitout, Ellen S. Moland, Nancy D. Hanson

Research output: Contribution to journalArticle

17 Scopus citations


Strains of Citrobacter freundii intermediate to cefotaxime but sensitive to ceftazidime were isolated from four different patients in Canada. Sequencing of PCR products by use of CTX-M-specific primers revealed a new combination of four amino acid substitutions. This new gene was designated bla CTX-M-30 and was encoded on a 3-kb plasmid. The pI of CTX-M-30 was 8.0.

Original languageEnglish (US)
Pages (from-to)4435-4437
Number of pages3
JournalAntimicrobial agents and chemotherapy
Issue number11
StatePublished - Nov 1 2004


All Science Journal Classification (ASJC) codes

  • Pharmacology
  • Pharmacology (medical)
  • Infectious Diseases

Cite this