Virulence Factor Profiles of Escherichia coli O157:H7 Bacteriophage Isolates from Sewage and Livestock Stools하수와 가축분변에서 분리된 대장균 O157:H7 박테리오파지의 병원성인자 프로파일
- Authors
- Seo, Jina; Seo, Dong Joo; Lee, Min Hwa; Jeon, Su Been; Oh, Hyejin; Oh, Mi Hwa; Choi, Changsun
- Issue Date
- 2014
- Publisher
- The Korean Society of Food Hygiene and Safety
- Keywords
- Escherichia coli O157:H7; Bacteriophage; virulence factors; eae; stx2
- Citation
- Journal of Food Hygiene and Safety, v.29, no.4, pp 316 - 321
- Pages
- 6
- Journal Title
- Journal of Food Hygiene and Safety
- Volume
- 29
- Number
- 4
- Start Page
- 316
- End Page
- 321
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/12899
- DOI
- 10.13103/JFHS.2014.29.4.316
- ISSN
- 1229-1153
2465-9223
- Abstract
- The aim of study was to investigate the virulence profile of Escherichia coli O157:H7 bacteriophagesisolated from sewage and livestock stools. Among 23 E. coli O157:H7 bacteriophages, 14 strains were isolatedfrom sewage and 9 were from animal stools collected from 10 livestock farms in Korea. For each bacteriophage DNAsample, the presence of stx1, stx2, eae, aafII, ial, elt, estI, estII, astA, afa, and cnf was examined by polymerase chainreaction. The detection rate of eae, stx2, estI, astA, and ial was 100%, 69.6%, 13.0%, 13.0%, 8.7%, respectively.
While all E. coli O157:H7 bacteriophages isolated from stools carried eae+stx2, stx2+eae, eae+astA, eae,stx2+eae+estI, eae+estI, stx2+eae+ial, and eae+ial were observed in bacteriophages isolated from sewage. As severalplasmid-carrying virulence factors (estI, astA, and ial) were found in E. coli O157:H7 bacteriophages obtainedfrom sewage and stools, the microbial safety of bacteriophages should be investigated in further study.
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