The emergence of a novel ceftazidime-resistant CTX-M extended-spectrum β-lactamase, CTX-M-55, in both community-onset and hospital-acquired infections in Thailand

• Main Authors: Pattarachai Kiratisin, Anucha Apisarnthanarak, Piyawan Saifon, Chaitat Laesripa, Rungrueng Kitphati, Linda M. Mundy
• Other Authors: Mahidol University
• Format: Article
• Published: 2018
• Subjects: Medicine
• Online Access: https://repository.li.mahidol.ac.th/handle/123456789/24836

We report a novel CTX-M type of extended-spectrum β-lactamase (ESBL), designated CTX-M-55, among 7 patients who had infection with ESBL-producing Escherichia coli or Klebsiella pneumoniae at a university hospital in Thailand. The CTX-M-55 ESBL showed reduced susceptibility to ceftazidime. This inves...