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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제25권 제9호
- 발행연도
- 2015.1
- 수록면
- 1,460 - 1,466 (7page)
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초록· 키워드
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In this study, the prevalence of Shiga toxin-producing Escherichia coli (STEC) was investigated among raw meat or meat products from slaughterhouses and retail markets in South Korea, and their potential for antibiotic resistance and virulence was further analyzed. A total of 912 raw meats, including beef, pork, and chicken, were collected from 2008 to 2009. E. coli strains were frequently isolated in chicken meats (176/233, 75.9%), beef (102/217, 42.3%), and pork (109/235, 39.2%). Putative STEC isolates were further categorized, based on the presence or absence of the Shiga toxin (stx) genes, followed by standard O-serotyping. Polymerase chain reaction assays were used to detect the previously defined virulence genes in STEC, including Shiga toxins 1 and Shiga toxin 2 (stx1 and 2), enterohemolysin (ehxA), intimin (eaeA), STEC autoagglutination adhesion (saa), and subtilase cytotoxin (subAB). All carried both stx1 and eae genes, but none of them had the stx2, saa, or subAB genes. Six (50.0%) STEC isolates possessed the ehxA gene, which is known to be encoded by the 60-megadalton virulence plasmid. Our antibiogram profiling demonstrated that some STEC strains, particularly pork and chicken isolates, displayed a multiple drug-resistance phenotype. RPLA analysis revealed that all the stx1-positive STEC isolates produced Stx1 only at the undetectable level. Altogether, these results imply that the locus of enterocyte and effacement (LEE)-positive strains STEC are predominant among raw meats or meat products from slaughterhouses or retail markets in Korea.
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참고문헌 (21)
참고문헌 신청
Ayala CO / 2012 / Determination of flagellar types by PCR-RFLP analysis of enteropathogenic Escherichia coli (EPEC) and Shiga toxin-producing E. coli (STEC) strains isolated
Bettelheim KA / 2007 / The non-O157 Shiga-toxigenic (verocytotoxigenic) Escherichia coli; under-rated pathogens / Crit. Rev. Microbiol 33 : 67 ~ 87
Beutin L / 2007 / Identification of human-pathogenic strains of Shiga toxin-producing Escherichia coli from food by a combination of serotyping and molecular typing of Shiga
Brooks TJ / 2002 / Non-O157 Shiga toxin?producing Escherichia coli infections in the United States, 1983?2002 / J. Infect. Dis 192 : 1422 ~ 1449
Clinical and Laboratory Standards Instit / 2008 / Performance standards for antimicrobial disk and dilution susceptibility tests or bacteria isolated from animals; Approved Standard, V
Bettelheim KA / 2007 / The non-O157 Shiga-toxigenic (verocytotoxigenic) Escherichia coli; under-rated pathogens / Crit. Rev. Microbiol 33 : 67 ~ 87
Beutin L / 2007 / Identification of human-pathogenic strains of Shiga toxin-producing Escherichia coli from food by a combination of serotyping and molecular typing of Shiga
Brooks TJ / 2002 / Non-O157 Shiga toxin?producing Escherichia coli infections in the United States, 1983?2002 / J. Infect. Dis 192 : 1422 ~ 1449
Clinical and Laboratory Standards Instit / 2008 / Performance standards for antimicrobial disk and dilution susceptibility tests or bacteria isolated from animals; Approved Standard, V
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