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Applied and Environmental Microbiology, September 2001, p. 4385-4389, Vol. 67, No. 9
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.9.4385-4389.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Incidence of Virulence Factors and Antibiotic Resistance among Enterococci Isolated from Food

Charles M. A. P. Franz,1 Albrecht B. Muscholl-Silberhorn,2 Nuha M. K. Yousif,1 Marc Vancanneyt,3 Jean Swings,3 and Wilhelm H. Holzapfel1,*

Federal Research Centre for Nutrition, Institute for Biotechnology and Molecular Biology, D-76131 Karlsruhe,1 and University of Regensburg, Institute for Microbiology, NWFIII, D-93053 Regensburg,2 Germany, and BCCM/LMG Bacteria Collection, Laboratory of Microbiology, University of Ghent, B-9000 Ghent, Belgium3

Received 9 February 2001/Accepted 21 June 2001

The incidence of virulence factors among 48 Enterococcus faecium and 47 Enterococcus faecalis strains from foods and their antibiotic susceptibility were investigated. No strain was resistant to all antibiotics, and for some strains, multiple resistances were observed. Of E. faecium strains, 10.4% were positive for one or more virulence determinants, compared to 78.7% of E. faecalis strains. Strains exhibiting virulence traits were not necessarily positive for all traits; thus, the incidence of virulence factors may be considered to be strain specific.

* Corresponding author. Mailing address: Federal Research Centre for Nutrition, Institute for Biotechnology and Molecular Biology, Haid-und-Neu-Strasse 9, D-76131 Karlsruhe, Germany. Phone: 49-721-6625 450. Fax: 49-721-6625 453. E-mail: wilhelm.holzapfel{at}bfe.uni-karlsruhe.de.

Applied and Environmental Microbiology, September 2001, p. 4385-4389, Vol. 67, No. 9
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.9.4385-4389.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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