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http://dx.doi.org/10.4014/jmb.1712.12060

Fecal Carriage of Antimicrobial-Resistant Enterobacteriaceae in Healthy Korean Adults  

Joo, Eun-Jeong (Division of Infectious Diseases, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine)
Kim, Sun Ju (Department of Molecular Cell Biology and Samsung Medical Center, Sungkyunkwan University School of Medicine)
Baek, Misuk (Department of Molecular Cell Biology and Samsung Medical Center, Sungkyunkwan University School of Medicine)
Choi, Yujin (Department of Molecular Cell Biology and Samsung Medical Center, Sungkyunkwan University School of Medicine)
Seo, Jungyu (Department of Molecular Cell Biology and Samsung Medical Center, Sungkyunkwan University School of Medicine)
Yeom, Joon-Sup (Department of Internal Medicine, Yonsei University College of Medicine)
Ko, Kwan Soo (Department of Molecular Cell Biology and Samsung Medical Center, Sungkyunkwan University School of Medicine)
Publication Information
Journal of Microbiology and Biotechnology / v.28, no.7, 2018 , pp. 1178-1184 More about this Journal
Abstract
The spread of antibiotic-resistant Enterobacteriaceae in the community is one of the main challenges for antibiotic treatment of community-onset infections. We evaluated the microbiological and molecular characteristics of stool samples from adults with comprehensive health examinations. Of 109 fecal samples, bacterial growth was observed in 86 samples and 61 gram-negative bacterial isolates were identified, of which 45 were Escherichia coli isolates (73.8%). Two isolates of Raoultella showed imipenem resistance, and both E. coli and Citrobacter freundii showed intermediate resistance to imipenem. Colistin resistance was identified in isolates of Klebsiella variicola and Salmonella subterranean, but no isolates carried mcr-1. As for E. coli genotypes, 35 sequence types were identified. $bla_{TEM-1}$, $bla_{TEM-30}$, and $bla_{CTX-M}$ were identified in 15, 1, and 4 E. coli isolates, respectively. In addition, all four Klebsiella pneumoniae isolates carried $bla_{SHV}$. Many genotypes that have been identified in isolates causing human infections were found in isolates in this study. There is a need to control the rise and spread of antibiotic-resistant pathogens by fecal carriage.
Keywords
Enterobacteriaceae; extended-spectrum ${\beta}$-lactamase (ESBL); CTX-M;
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