Preliminary Results on the Prevalence of Salmonella spp. in Marine Animals Stranded in Sicilian Coasts: Antibiotic Susceptibility Profile and ARGs Detection in the Isolated Strains

The presence of spp. in marine animals is a consequence of contamination from terrestrial sources (human activities and animals). Bacteria present in marine environments, including spp., can be antibiotic resistant or harbor resistance genes. In this study, spp. detection was performed on 176 marine...

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Bibliographic Details
Published in:Pathogens (Basel) 2021-07, Vol.10 (8), p.930
Main Authors: Gambino, Delia, Sciortino, Sonia, Migliore, Sergio, Galuppo, Lucia, Puleio, Roberto, Dara, Salvatore, Vicari, Domenico, Seminara, Salvatore, Gargano, Valeria
Format: Article
Language:English
Subjects:
Ampicillin
Animals
Antibiotic resistance
Antibiotics
Antimicrobial agents
Bacteria
Caretta caretta
Coasts
Communication
Contamination
Dermochelys coriacea
Drug resistance
Genes
Infections
Laboratories
Marine animals
Marine environment
Marine organisms
Marine pollution
Minimum inhibitory concentration
Pathogens
Salmonella
Salmonella enterica
Spleen
Strains (organisms)
Wildlife conservation
Zoonoses
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Summary:The presence of spp. in marine animals is a consequence of contamination from terrestrial sources (human activities and animals). Bacteria present in marine environments, including spp., can be antibiotic resistant or harbor resistance genes. In this study, spp. detection was performed on 176 marine animals stranded in the Sicilian coasts (south Italy). Antibiotic susceptibility, by disk diffusion method and MIC determination, and antibiotic resistance genes, by molecular methods (PCR) of the spp. strains, were evaluated. We isolated spp. in three animals, though no pathological signs were detected. Our results showed a low prevalence of spp. (1.7%) and a low incidence of phenotypic resistance in three spp. strains isolated. Indeed, of the three strains, only subsp. enterica serovar Typhimurium from and showed phenotypic resistance: the first to ampicillin, tetracycline, and sulphamethoxazole, while the latter only to sulphamethoxazole. However, all strains harbored resistance genes ( , , (A), (D), (E), I, and II). Although the low prevalence of Salmonella spp. found in this study does not represent a relevant health issue, our data contribute to the collection of information on the spread of ARGs, elements involved in antibiotic resistance, now considered a zoonosis in a One Health approach.
ISSN:2076-0817
2076-0817
DOI:10.3390/pathogens10080930