J Vet Sci.
2019 Jan;20(1):87-90. 10.4142/jvs.2019.20.1.87.
Molecular epidemiology of sequence type 33 of Shiga toxin-producing Escherichia coli O91:H14 isolates from human patients and retail meats in Korea
- Affiliations
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- 1College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea. jwy706@kangwon.ac.kr
- 2Division of Bacterial Disease Research, Center for Infectious Diseases Research, Korea National Institute of Health, Centers for Disease Control and Prevention, Cheongju 28159, Korea. micro487@hanmail.net
- 3Division of Bacterial Disease, Center for Laboratory Control of Infectious Diseases, Center for Disease Control and Prevention, Cheongju 28159, Korea.
- KMID: 2434782
- DOI: http://doi.org/10.4142/jvs.2019.20.1.87
Abstract
- Sequence type (ST) 33 of Shiga toxin-producing Escherichia coli (STEC) strain O91:H14 has been proposed as a potential domestic clone of STEC in Korea because of its high prevalence among human patients with mild diarrhea or asymptomatic carriers. Herein, the clonal diversity of 17 STEC O91:H14 isolates of ST33 during 2003 to 2014 was analyzed by pulsed-field gel electrophoresis, including 14 isolates from human patients and 3 from retail meats. Their virulence characteristics, acid resistance, and antimicrobial susceptibility were also determined. Our results showed that all isolates were clustered mainly into three different pulsotypes and were likely low pathogenic without antimicrobial resistance.
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