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Increasing Incidence of High-Level Tetracycline-Resistant Neisseria gonorrhoeae due to Clonal Spread and Foreign Import.

Authors
 Hyukmin Lee  ;  Hyunsoo Kim  ;  Hyo Jin Kim  ;  Young Hee Suh  ;  Dongeun Yong  ;  Seok Hoon Jeong  ;  Kyungwon Lee  ;  Yunsop Chong 
Citation
 Yonsei Medical Journal, Vol.57(2) : 350-357, 2016 
Journal Title
 Yonsei Medical Journal 
ISSN
 0513-5796 
Issue Date
2016
MeSH
Anti-Bacterial Agents/pharmacology* ; Ceftriaxone/pharmacology ; Ciprofloxacin/pharmacology ; DNA, Bacterial/analysis ; Drug Resistance, Multiple, Bacterial/genetics* ; Gonorrhea/drug therapy ; Gonorrhea/epidemiology ; Gonorrhea/microbiology ; Humans ; Incidence ; Microbial Sensitivity Tests ; Molecular Epidemiology ; Neisseria gonorrhoeae/drug effects* ; Neisseria gonorrhoeae/genetics* ; Neisseria gonorrhoeae/isolation & purification ; Republic of Korea/epidemiology ; Sequence Analysis, DNA ; Tetracycline/pharmacology ; Tetracyclines/pharmacology*
Keywords
NG-MAST ; Neisseria gonorrhoeae ; antimicrobial resistance ; epidemiology ; tetracycline
Abstract
PURPOSE: The detection of high-level tetracycline-resistant strains of Neisseria gonorrhoeae (TRNG) can make important epidemiological contributions that are relevant to controlling infections from this pathogen. In this study, we aimed to determine the incidence of TRNG isolates over time and also to investigate the characteristics and genetic epidemiology of these TRNG isolates in Korea. MATERIALS AND METHODS: The antimicrobial susceptibilities of 601 isolates of N. gonorrhoeae from 2004 to 2011 were tested by standard Clinical and Laboratory Standards Institute methods. To determine the molecular epidemiological relatedness, N. gonorrhoeae multi-antigen sequence typing was performed. RESULTS: The incidence of TRNG increased from 2% in 2004 to 21% in 2011. The minimum inhibitory concentration distributions of ceftriaxone and susceptibility of ciprofloxacin in TRNG were different from non-TRNG and varied according to the year of isolation. Most of the TRNG isolates collected from 2004 to 2007 exhibited genetic relatedness, with sequence type (ST) 1798 being the most common. From 2008 to 2011, the STs of the isolates became more variable and introduction of genetically unrelated TRNG were noted. CONCLUSION: The increased incidence of TRNG strains until 2007 appears to be due, at least in part, to clonal spread. However, we propose that the emergence of various STs since 2008 could be associated with foreign import.
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DOI
10.3349/ymj.2016.57.2.350
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Laboratory Medicine (진단검사의학교실) > 1. Journal Papers
Yonsei Authors
용동은(Yong, Dong Eun) ORCID logo https://orcid.org/0000-0002-1225-8477
이경원(Lee, Kyungwon) ORCID logo https://orcid.org/0000-0003-3788-2134
정석훈(Jeong, Seok Hoon) ORCID logo https://orcid.org/0000-0001-9290-897X
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/146865
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