期刊
FOOD MICROBIOLOGY
卷 32, 期 2, 页码 223-229出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fm.2012.06.002
关键词
Shiga-toxin producing Escherichia coli; STEC; Beef abattoirs; Virulence factors
Four hundred and fifty beef animal hides and a similar number of carcasses were screened for STEC in 3 beef abattoirs over a 12 month period using PCR and culture based methods. 67% (301/450) of hides and 27% (122/450) of carcasses were STEC PCR positive. Forty isolates representing 12 STEC serotypes (O5:H-, O13:H2, O26:H11, O33:H11, O55:H11, O113:H4, O128:H8, O136:H12, O138:H48, O150:H2, O168:H8 and ONT:H11) and 15 serotype-virulotype combinations were identified. This study provides much needed non-O157 STEC surveillance data and also provides further evidence of bovines as a source of clinically significant STEC as well as identifying 3 emerging serotypes O5:H-(eae-beta 1), O13:H2 (eae-zeta), and O150:H2 (eae-zeta) that should be considered when developing beef testing procedures for non-O157 STEC. (c) 2012 Elsevier Ltd. All rights reserved.
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