Isolation and Characterization of Listeria monocytogenes Isolates from Ready-To-Eat Foods in Florida
- 1 July 2006
- journal article
- research article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 72 (7) , 5073-5076
- https://doi.org/10.1128/aem.00435-06
Abstract
Of 3,063 ready-to-eat food samples tested, 91 (2.97%) were positive for Listeria monocytogenes, and lineage 1 strains outnumbered lineage 2 strains 57 to 34. Seventy-one isolates (78%) exhibited multiple antibiotic resistance, and an L. monocytogenes-specific bacteriophage cocktail lysed 65 of 91 (71%) isolates. Determining phage, acid, and antibiotic susceptibility phenotypes enabled us to identify differences among strains which were otherwise indistinguishable by conventional methods.Keywords
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