한국수산과학회

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kfas, vol. 54, no. 4, pp.388-396, August, 2021
DOI. https://doi.org/10.5657/KFAS.2021.0388

Comparison of Antimicrobial Resistance and Multi-Drug Resistance Patterns of Escherichia coli Isolated from Aquatic Organisms Off the West Coast of South Korea 서해안 수산생물에서 분리한 대장균(Escherichia coli)의 항생제 내성 및 다제 내성 양상 비교

정연겸·박보미·김민주·박진일·정연중1 ·오은경*
국립수산과학원 서해수산연구소, 1 국립수산과학원 식품위생가공과

Antimicrobial resistance patterns of Escherichia coli were investigated. Strains were isolated from 310 shellfish, 36 crustaceans, and 12 fish collected off the West Coast of Korea from April 2019 to October 2020. Two hundred and ninety-five E. coli strains were isolated from shellfish, 100 from crustaceans, and 54 from fish. Strains isolated from shellfish showed the highest resistance to ampicillin (27.5%), whereas those from crustaceans were resistant to sulfisoxazole (30.0%) and those from fish were resistant to ampicillin (59.3%) and sulfisoxazole (59.3%). Ceftazidime resistance was observed in strains isolated from short neck and hard clams, whereas gentamicin resistance was observed in strains from fish. Multi-drug resistance was observed in 56 strains (48.7%) isolated from shellfish, 11 (28.2%) from crustaceans and 27 (73.0%) from fish. Depending on the source of isolation, the strains showed specific antimicrobial resistance tendency. Strains isolated from shellfish showed 12 different multi-drug resistance patterns, whereas those from crustaceans showed high resistance (59%) to a single antimicrobial agent and those from fish showed a broad trend of multi-drug resistance to more than eight antimicrobials.

Keyword : Antimicrobial resistance, Aquatic organism, Escherichia coli, Multi-drug resistance, West coast

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