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

Pattarachai KiratisinAnucha ApisarnthanarakPiyawan SaifonChaitat LaesripaRungrueng KitphatiLinda M. MundyMahidol UniversityFaculty of Medicine, Thammasat UniversityThai National Institute of HealthSt. Louis University School of Public Health2018-08-242018-08-242007-07-01Diagnostic Microbiology and Infectious Disease. Vol.58, No.3 (2007), 349-355073288932-s2.0-34347325951https://repository.li.mahidol.ac.th/handle/20.500.14594/24836We 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 investigation provides the relevant clinical and molecular epidemiology for the gene encoding for CTX-M-55 in the isolates from these patients. © 2007 Elsevier Inc. All rights reserved.Mahidol UniversityMedicineThe emergence of a novel ceftazidime-resistant CTX-M extended-spectrum β-lactamase, CTX-M-55, in both community-onset and hospital-acquired infections in ThailandArticleSCOPUS10.1016/j.diagmicrobio.2007.02.005