Characterization of Escherichia coli isolated from carcasses of beef cattle during their processing at an abattoir in Brazil
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Data
2006-07-15
Autores
Rigobelo, E. C.
Stella, A. E.
Avila, F. A.
Macedo, C.
Marin, J. M.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
Beef carcass sponge samples collected between March 2003 and August 2005 at an abattoir in Brazil were surveyed for the presence of Shiga toxin-producing Escherichia coli (STEC). Only one carcass among the 80 tested showed a STEC, stx2-encoding gene by PCR amplification. The frequency of carcass contamination by E. coli during processing was tested at three situations, respectively: preevisceration, postevisceration and postprocessing, during the rain and dry seasons. The prevalence of E. coli at the three points was of 30.0%, 70.0%, 27.5% in the rain season and of 22.5%, 55.0%, 17.5% during the dry season, respectively. The E. coli isolates exhibited a high level (45.0%) of multidrug resistance to two or more antimicrobial agents. (c) 2006 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
Escherichia coli, beef carcass, STEC, abattoir, multidrug resistance
Como citar
International Journal of Food Microbiology. Amsterdam: Elsevier B.V., v. 110, n. 2, p. 194-198, 2006.