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Korean J. Vet. Serv. 2020; 43(2): 53-58

Published online June 30, 2020

https://doi.org/10.7853/kjvs.2020.43.2.53

© The Korean Socitety of Veterinary Service

전북지역 소 설사유래 병원성대장균 감염실태 조사

정한솔;백귀정;고원석;이정원;정재교;

전라북도동물위생시험소;전라북도동물위생시험소;전라북도동물위생시험소;전라북도동물위생시험소;전라북도동물위생시험소;

Received: November 29, 2019; Accepted: March 16, 2020

Prevalence of enterovirulent Escherichia coli from diarrhea of cattles in Jeonbuk, Korea

Jeong, Hansol;Baek, Kui-Jeong;Koh, Won-Seok;Lee, Jeong-Won;Jeong, Jae-Kyo;

Jeollabuk-do Institute of Livestock & Veterinary Research;Jeollabuk-do Institute of Livestock & Veterinary Research;Jeollabuk-do Institute of Livestock & Veterinary Research;Jeollabuk-do Institute of Livestock & Veterinary Research;Jeollabuk-do Institute of Livestock & Veterinary Research;

Correspondence to : 전라북도동물위생시험소(Jeollabuk-do Institute of Livestock & Veterinary Research)

Received: November 29, 2019; Accepted: March 16, 2020

Abstract

Enterovirulent Escherichia coli are among the most important causes of diarrhea in cattles. Between January and December, 2017, a total of 150 stool specimens from cattles were investigated for enterohaemorrhagic E. coli (EHEC), enteropathogenic E. coli (EPEC), enteroaggregative E. coli (EAEC), enterotoxigenic E. coli (ETEC) and enteroinvasive E. coli (EIEC) using real-time PCR. 131 E. coli were isolated from feces. The most frequently isolated pathotype in feces was EHEC (37 isolates). EPEC, ETEC and EAEC were detected in feces with 14, 7 and 3 respectively. EIEC was not detected. Antimicrobial resistance test was performed by agar disc diffusion method with 14 antimicrobials. Enterovirulent E. coli isolates showed the highest antimicrobial resistance to ampicillin 61.3%, followed by tetracycline 54.5% and streptomycin 45.5%. They had low resistance to amikacin 11.4%. Of 44 isolates, 37 (84.1%) were resistant to more than 2 antimicrobials. futher study a highest antimicrobial susceptibility to trimethoprim/sulfamethoxazole 50.0% and florofenicol 47.7%.

Keywords Escherichia coli,Cattles,Real-time PCR,Antimicrobial resistance,

Article

Research Article

Korean J. Vet. Serv. 2020; 43(2): 53-58

Published online June 30, 2020 https://doi.org/10.7853/kjvs.2020.43.2.53

Copyright © The Korean Socitety of Veterinary Service.

전북지역 소 설사유래 병원성대장균 감염실태 조사

정한솔;백귀정;고원석;이정원;정재교;

전라북도동물위생시험소;전라북도동물위생시험소;전라북도동물위생시험소;전라북도동물위생시험소;전라북도동물위생시험소;

Received: November 29, 2019; Accepted: March 16, 2020

Prevalence of enterovirulent Escherichia coli from diarrhea of cattles in Jeonbuk, Korea

Jeong, Hansol;Baek, Kui-Jeong;Koh, Won-Seok;Lee, Jeong-Won;Jeong, Jae-Kyo;

Jeollabuk-do Institute of Livestock & Veterinary Research;Jeollabuk-do Institute of Livestock & Veterinary Research;Jeollabuk-do Institute of Livestock & Veterinary Research;Jeollabuk-do Institute of Livestock & Veterinary Research;Jeollabuk-do Institute of Livestock & Veterinary Research;

Correspondence to:전라북도동물위생시험소(Jeollabuk-do Institute of Livestock & Veterinary Research)

Received: November 29, 2019; Accepted: March 16, 2020

Abstract

Enterovirulent Escherichia coli are among the most important causes of diarrhea in cattles. Between January and December, 2017, a total of 150 stool specimens from cattles were investigated for enterohaemorrhagic E. coli (EHEC), enteropathogenic E. coli (EPEC), enteroaggregative E. coli (EAEC), enterotoxigenic E. coli (ETEC) and enteroinvasive E. coli (EIEC) using real-time PCR. 131 E. coli were isolated from feces. The most frequently isolated pathotype in feces was EHEC (37 isolates). EPEC, ETEC and EAEC were detected in feces with 14, 7 and 3 respectively. EIEC was not detected. Antimicrobial resistance test was performed by agar disc diffusion method with 14 antimicrobials. Enterovirulent E. coli isolates showed the highest antimicrobial resistance to ampicillin 61.3%, followed by tetracycline 54.5% and streptomycin 45.5%. They had low resistance to amikacin 11.4%. Of 44 isolates, 37 (84.1%) were resistant to more than 2 antimicrobials. futher study a highest antimicrobial susceptibility to trimethoprim/sulfamethoxazole 50.0% and florofenicol 47.7%.

Keywords: Escherichia coli,Cattles,Real-time PCR,Antimicrobial resistance,

KJVS
Dec 30, 2022 Vol.45 No.4, pp. 249~342

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