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Application of the Intelligent High-Throughput Antimicrobial Sensitivity Testing/Phage Screening System and Lar Index of Antimicrobial Resistance
Published on: July 21, 2023
Characterization of multi-drug resistance in Salmonella strains isolated from animals
Cristina Romani1, Aurora Aleo, Nathalie Pellissier
1Dipartimento di Sanità Pubblica, Università degli Studi, Florence, Italy.
Abstract:
Spread of antibiotic resistances through agro-food chain remains an actual question for both researchers and public health operators. Our study investigates antimicrobial resistance in Salmonella spp. strains isolated from avicultural and swine samples (prevalence: 2% and 5.5% respectively). Strains belonging to different serotypes-pulsetypes have resulted multi-resistant in 76% of cases (avicultural strains: 13/23, swine strains: 73/90). Multi-drug resistant strains (MDR) have been studied for transferability by conjugation - observed in 25.6% cases - and for genetic determinants of resistances: 73.3% MDR strains harbour plasmids; class-1 integrons have been identified in 14 strains. Comparing our findings to available scientific literature, we discuss Salmonellosis resistance pattern according to the food chain and serotype.
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