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KMID : 0364820140500020101
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Korean Journal of Microbiology
2014 Volume.50 No. 2 p.101 ~ p.107
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Bacterial Contamination and Antimicrobial Resistance of the Surrounding Environment Influencing Health
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Lee Do-Kyung
Park Jae-Eun
Kim Kyung-Tae
Jang Dai-Ho
Song Yung-Cheon
Ha Nam-Joo
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Abstract
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Community-acquired antimicrobial resistant bacteria are an emerging problem world-wide. In Korea, resistant
bacteria are more prevalent than in other industrialized countries. The aim of this study was to investigate the
isolation frequency of methicillin-resistant staphylococci (MRS), Pseudomonas, and Enterobacteriaceae from
surrounding environment (home, colleges, public transportation system and possessions) in Seoul, and to examine
the level of drug resistance to 13 antimicrobial agents, which are in wide spread clinical use in Korea, as well as new
agent, tigecycline in Enterobacteriaceae isolates. Of total 239 samples, 18 (7.5%) MRS, 10 (4.2%) Pseudomonas,
and 30 (12.6%) Entarobacteriaceae were isolated. A total of 5 (2.1%) methicillin-resistant S. aureus (MRSA) were
detected in home (2 samples), colleges (1 sample), and et cetera (2 sample). A total of 5 (2.1%) Escherichia coli
were detected in in home (1 samples), public transportations (3 sample), and et cetera (1 sample). Resistance to
cephalosporins, fluoroquinolones, carbapenems, β-lactams, tetracyclines, and aminoglycosides was found in 71.9%,
71.9%, 68.8%, 68.8%, 50.0%, and 25.0% of 32 Enterobacteriaceae isolates, respectively. Also, resistance rate to
trimethoprim/sulfamethoxazole of the isolates was a 43.8%. Moreover, 59.4% of the isolates were resistant to new
agent, tigecycline and resistance to all agents tested was observed in 3 isolates. Five E. coli isolates were resistant to
most of the agents tested, but some of them were susceptible to ciprofloxacin and gentamicin. This study can serve
as a data point for future comparisons of possible changes in antibiotic resistance levels in surrounding environment.
And multilateral strategies for preventing the incidence and spread of antibiotic resistance are needed.
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KEYWORD
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Pseudomonas, antimicrobial resistance, Enterobacteriaceae, methicillin-resistant staphylococci
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