title: Characterization of transferable tetracycline resistance genes in Enterococcus faecalis isolated from raw food.
abstract: The prevalence of tetracycline resistance, and of specific genetic determinants for this resistance was investigated in 1003 strains of Enterococcus faecalis isolated from various raw food products originating from five categories including chicken meat, other poultry meat, beef, pork, and 'other'. For the 238 resistant isolates identified, the ability to transfer the resistant phenotype to a given recipient in vitro was investigated. New and interesting observations were that the tet(L) resistance determinant was more readily transferred than tet(M), and that the presence of Tn916-like elements known to encode tet(M) did not correlate with increased transferability of the resistant phenotype.
authors.affiliation: Department of Microbiological Food Safety, Danish Institute for Food and Veterinary Research, Moerkhoej Bygade 19, DK-2860 Soeborg, Denmark.
authors.forename: Andrea
authors.initials: A
authors.lastname: Wilcks
authors.forename: Sigrid Rita
authors.initials: SR
authors.lastname: Andersen
authors.forename: Tine Rask
authors.initials: TR
authors.lastname: Licht
mesh_terms: D000818:Animals; D017920:Antiporters / Q000235:genetics; D002417:Cattle; D002645:Chickens; D003227:Conjugation, Genetic; D013293:Enterococcus faecalis / Q000187:drug effects / Q000235:genetics*; D029968:Escherichia coli Proteins / Q000235:genetics; D005516:Food Microbiology; D022761:Gene Transfer, Horizontal; D008461:Meat Products / Q000382:microbiology*; D008565:Membrane Proteins / Q000235:genetics; D013753:Tetracycline Resistance / Q000235:genetics*
chemical_list: D017920:Antiporters; D029968:Escherichia coli Proteins; D008565:Membrane Proteins; C424711:Tet(L) protein, E coli