Co-infection With Chromosomally-Located bla _CTX-M-14 and Plasmid-Encoding bla _CTX-M-15 in Pathogenic Escherichia coli in the Republic of Korea.

ABSTRACT: The emergence of third-generation cephalosporin resistance in Escherichia coli is increasing at an alarming rate in many countries. Thus, the aim of this study was to analyze co-infecting bla _CTX-M-producing pathogenic E. coli isolates linked to three school outbreaks. Among 66 E. coli isolates, 44 were identified as ETEC O25, an ETEC isolate serotype was O2, and the other 21 were confirmed as EAEC O44. Interestingly, six patients were co-infected with EAEC O44 and ETEC O25. For these isolates, molecular analysis [antibiotic susceptibility testing, identification of the β-lactamase gene, multilocus sequence typing (MLST), and pulsed-field gel electrophoresis (PFGE)] was performed for further characterization. In addition, the transmission capacity of

SUBMITTER: Park J 

PROVIDER: S-EPMC7686028 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature