Characterization of listeria monocytogenes isolates from cattle and ground beef by pulsed-field gel electrophoresis Report as inadecuate




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LORENA VIDAL ; MIRIAM TRONCOSO ; GUILLERMO FIGUEROA ;Revista Argentina de Microbiología 2012, 44 3

Author: CLAUDIA FOERSTER

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Revista Argentina de Microbiología ISSN: 0325-7541 ram@aam.org.ar Asociación Argentina de Microbiología Argentina FOERSTER, CLAUDIA; VIDAL, LORENA; TRONCOSO, MIRIAM; FIGUEROA, GUILLERMO Characterization of Listeria monocytogenes isolates from cattle and ground beef by pulsed-field gel electrophoresis Revista Argentina de Microbiología, vol.
44, núm.
3, julio-septiembre, 2012, pp.
195-200 Asociación Argentina de Microbiología Buenos Aires, Argentina Available in: http:--www.redalyc.org-articulo.oa?id=213025111012 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative ISSN 0325-7541 Running headline: INFORME BREVEL.
monocytogenes in Chilean bovine 195 Revista Argentina de Microbiología (2012) 44: 195-200 Characterization of Listeria monocytogenes isolates from cattle and ground beef by pulsed-field gel electrophoresis CLAUDIA FOERSTER*, LORENA VIDAL, MIRIAM TRONCOSO, GUILLERMO FIGUEROA Laboratorio de Microbiología y Probióticos, INTA, Universidad de Chile.
Santiago, Chile. *Correspondence.
E-mail: claudia.foerster@gmail.com ABSTRACT The aims of this study were to determine the occurrence of Listeria monocytogenes in cattle feces and ground beef, to characterize these strains by pulsed-field gel electrophoresis and to compare them to three listeria strains found in humans.
Cattle from different origins (n = 250) and ground beef obtained from supermarkets (n = 40) were sampled.
The results show low occurrence in cattle feces (0.4 %) but a higher presence in ground beef (37 %).
An important part of the ground beef strains (80 %) had 95 % similarity with a strain isolated from a human sporadic case and the ATCC 19115 used as control.
The strain isolated from cattle feces had 93 % similarity to clone 009, previously associated...





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