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KMID : 0881720170320020147
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Journal of Food Hygiene and Safety
2017 Volume.32 No. 2 p.147 ~ p.153
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Virulence Profile and Antimicrobial Resistance of Escherichia coli from Flies Captured from Agricultural Environment
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Yun Bo-Hyun
Jang Youn-Jung
Kim Yeon-Rok
Kim Hwang-Yong
Kim Won-Il
Han Sang-Hyun
Kim Se-Ri
Rhu Jae-Gee
Kim Hyun-Joo
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Abstract
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The purpose of this study was to isolate Escherichia coli from flies and to assess pathogenic genes and antibiotic resistance of the isolates. A total of 188 flies were captured in agricultural environment including fruits farms (n = 19), fermented soybean farms (n = 9), municipal waste (n = 46), livestock farms (n = 66), slaughterhouses (n = 38), and manure ground (n = 10). E. coli isolates of captured flies were tested for pathogenic gene and antibiotic resistance using PCR methods and VITEK2 systems. As a result, E. coli from 63% (119/188) of the captured flies has been detected, and the detection rate of E. coli was the highest (89%, 31/34) in flies captured at particular slaughterhouse. Of the 34 isolates, 94% (32/34) were pathogenic gene (ST gene) positive. Twenty-six percent (31/119) of the E. coli isolates were observed being resistant to one or more antibiotics. Markedly, one of E. coli isolates from Livestock farms was resistant to 7 antibiotics including ampicillin, ampicillin/sulbactam, cefazolin, cefotaxime, gentamicin, levofloxacin, and trimethoprim/sulfamethoxazole. In addition, it was ESBL positive. The results of the present study may suggest a risk of transmission of pathogenic and antimicrobial resistant bacteria from flies to livestock environment Therefore, it may need to prevent introducing flies into the agricultural production environment for safe food production.
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KEYWORD
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Antibiotic resistant bacteria , Escherichia coli , Flies , Agricultural environments
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