Antimicrobial susceptibilities of Listeria monocytogenes strains isolated from food and food processing environment in Poland.

摘要: A total of 471 Listeria monocytogenes isolates from different types food and food-related sources in Poland during 2004–2010 were examined. This number includes 200 fish, 144 fresh frozen vegetables, 43 ready-to-eat products (deli foods, cold cuts), 13 dairy products, 16 raw meats, 15 confectionery 40 directly processing plants. All subjected to serotyping lineage assays using PCR, antimicrobial susceptibility E-test a broth microdilution method. Of all isolates, 256 (54.4%), 120 (25.5%), 59 (12.5%), 36 (7.6%) identified as serotypes 1/2a (or 3a), 1/2c 3c), 1/2b 3b or 7), 4b 4d 4e), respectively. direct correlation between the most common three L. lineages was also observed. belonged I (20.2%) II (79.8%). strains sensitive ampicillin, amoxicillin, gentamicin, erythromycin, trimethoprim, rifampicin, vancomycin, chloramphenicol sulfamethoxazol. Two (0.42%) showed phenotypic resistance. One strain resistant tetracycline minocycline due presence tet(M). It did not carry gene int, which may indicate that tet(M) this integrated transposon Tn916-Tn1545 family. The resistance second ciprofloxacin norfloxacin attributed active efflux associated with overexpression lde. Our data low prevalence among Poland.