Antimicrobial Resistance of <i>Listeria monocytogenes</i> Strains Isolated in Food and Food-Processing Environments in Italy
<i>Listeria monocytogenes</i>, along with various other pathogenic bacteria, may show resistance against a broad spectrum of antibiotics. Evaluating the extent of resistance in harmful microorganisms like <i>Listeria monocytogenes</i> holds significant importance in crafting...
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| Main Authors: | , , , , , , |
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| Format: | Book |
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MDPI AG,
2024-06-01T00:00:00Z.
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| Summary: | <i>Listeria monocytogenes</i>, along with various other pathogenic bacteria, may show resistance against a broad spectrum of antibiotics. Evaluating the extent of resistance in harmful microorganisms like <i>Listeria monocytogenes</i> holds significant importance in crafting novel therapeutic strategies to mitigate or combat the rise of infections stemming from antibiotic-resistant bacteria. The present work aims to investigate the occurrence of antimicrobial resistance among <i>Listeria monocytogenes</i> strains in meat products (n = 173), seafood (n = 54), dairy products (n = 19), sauces (n = 2), confectionary products (n = 1), ready-to-eat rice dishes (n = 1), and food-processing environments (n = 19). A total of 269 <i>Listeria monocytogenes</i> strains belonging to eight different serovars were tested against 10 antimicrobials. In the classes of antibiotics, most of the strains were resistant antibiotics belonging to the family of β-lactams (92.94%). High proportions of <i>L. monocytogenes</i> isolates were resistant to oxacillin (88.48%), followed by fosfomycin (85.87%) and flumenique (78.44%). The lowest level of resistance was observed against gentamycin (1.49%). A total of 235 strains (n = 87.36%) showed a profile of multidrug resistance. In conclusion, a high occurrence of resistant and multidrug-resistant strains of <i>Listeria monocytogenes</i> was observed among the examined serotypes isolated from different food sources. This understanding enables the adoption of suitable measures to avert contamination and the spread of resistant bacteria via food. |
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| Item Description: | 10.3390/antibiotics13060525 2079-6382 |