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KMID : 0950020070330010019
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Journal of Health Science & Medical Technology
2007 Volume.33 No. 1 p.19 ~ p.29
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Isolation Frequency and Antimicrobial Susceptibility of Escherichia Species from Clinical Specimens
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Shin Hyun-Sung
Park Youn-Bo
Jo Kyung-Jin
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Abstract
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The 4,579 Escherichia spp. were isolated from total 121,294 clinical materials from Dec 1, 2004 to Nov 30, 2006 in “C” hospital. Isolation frequency of Escherichia spp were 99.7% in E. coli, 0.2% E. hermannii and 0.1% E. fergusonii. %. Escherichia spp. were more frequently isolated in over 50 age group(8.7%-20.7%) than the below 50 age group(2.1-10.4%). According to the specimen types, 59.7% of the isolated Escherichia spp. were from urine (random 45.9% and catheterized urine 13.8%). In the susceptibility analysis of the Escherichia spp., using VITEK Ⅱ AST cards, 25.3%(536/2121) were extended spectrum β-lactamase(ESBL) E. coli. The antimicrobial agents that showed over 90% susceptibility were imipenem, amikacin, piperacillin/tazobactam and nitrofurantoin.
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KEYWORD
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Escherichia species, ESBL, Susceptibility, E. coli
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