The changes of PCR ribotype and antimicrobial resistance of Clostridium difficile in a tertiary care hospital over 10 years
- Authors
- Lee, Jong-Han; Lee, Yang soon; Lee, Kyungwon; Riley, Thomas V.; Kim, Heejung
- Issue Date
- Jun-2014
- Publisher
- SOC GENERAL MICROBIOLOGY
- Citation
- JOURNAL OF MEDICAL MICROBIOLOGY, v.63, no.6, pp.819 - 823
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MEDICAL MICROBIOLOGY
- Volume
- 63
- Number
- 6
- Start Page
- 819
- End Page
- 823
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/159691
- DOI
- 10.1099/jmm.0.072082-0
- ISSN
- 0022-2615
- Abstract
- The aims of this study were to investigate any change in PCR ribotypes and to determine the antimicrobial resistance of common PCR ribotypes over a 10-year period in a tertiary care hospital. We conducted PCR ribotyping, antimicrobial susceptibility testing and DNA gyrase sequencing to identify changes in 1407 Clostridium difficile non-duplicated isolates obtained between 2000 and 2009. A total of 74 different ribotypes were found. The most prevalent ribotype was ribotype 001 (26.1 %). The prevalence of ribotype 017 was 17% and that of ribotype 014/020 was 9.6 %. Ribotyping showed that the prevalence of ribotype 001 decreased and the prevalence of ribotypes 017, 014/020 and 018 increased over the 10 years. Antimicrobial resistance rates in prevalent ribotypes were: clindamycin, 81 %; cefotetan, 19%; moxifloxacin, 42 %; imipenem, 8%; ciprofloxacin, 100% and erythromycin, 80 %. Ribotype 018 showed greater antimicrobial resistance than other ribotypes. All ribotype 018 strains showing moxifloxacin resistance had a substitution of a gyrA coding amino acid (Thr82 to Ile). This study will help the understanding of PCR ribotype trends and antimicrobial resistance of C. difficile in Korea.
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