Non-typhoidal Salmonella enterica infection is a significant public health problem worldwide. The aim of this study was to characterize Salmonella enterica strains isolated from human specimens in central and southern Italy, for epidemiological studies. One hundred and fifty S. enterica strains were serotyped. Isolates were tested for their antimicrobial susceptibility, by disk diffusion method. The molecular characterizations, based on PCR, were carried out for the detection of invA gene and other virulence elements and phage marker genes. Eighteen different Salmonella serotypes were identified. The most common serotypes detected were S. Typhimurium, S. Enteritidis, the monophasic variant of S. Typhimurium (S. 4,[5],12:i:-), and S. Napoli. High resistance rates were recorded for tetracycline (64%), streptomycin (62%), sulphonamide (57%), and ampicillin (56%). The ASSuT R-type, also associated to resistance to other antibiotics, was highly prevalent in S. 4,[5],12:i:- (97%) and S. Typhimurium (55%), while the ACSSuT R-type, also associated to other antibiotics, was observed prevalently in S. Typhimurium (20.4%). The genes of more common detection were invA (100%), sspH2 (86.6%), gtgB (84.6%), g8 (80%), sodC1 (77.3%), gipA (52.6%), sspH1 (52.6%).

Characterization of non-typhoidal Salmonella enterica strains of human origin in central and southern Italy / Proroga, Yolande T. R.; Capuano, Federico; Capparelli, Rosanna; Bilei, Stefano; Bernardo, Mariano; Pia Cocco, Maria; Campagnuolo, Rosalba; Pasquale., Vincenzo. - In: ITALIAN JOURNAL OF FOOD SAFETY. - ISSN 2239-7132. - 7:1(2018), pp. 15-20. [10.4081/ijfs.2018.6888]

Characterization of non-typhoidal Salmonella enterica strains of human origin in central and southern Italy

Yolande T. R. Proroga;Federico Capuano
;
Rosanna Capparelli;Mariano Bernardo;
2018

Abstract

Non-typhoidal Salmonella enterica infection is a significant public health problem worldwide. The aim of this study was to characterize Salmonella enterica strains isolated from human specimens in central and southern Italy, for epidemiological studies. One hundred and fifty S. enterica strains were serotyped. Isolates were tested for their antimicrobial susceptibility, by disk diffusion method. The molecular characterizations, based on PCR, were carried out for the detection of invA gene and other virulence elements and phage marker genes. Eighteen different Salmonella serotypes were identified. The most common serotypes detected were S. Typhimurium, S. Enteritidis, the monophasic variant of S. Typhimurium (S. 4,[5],12:i:-), and S. Napoli. High resistance rates were recorded for tetracycline (64%), streptomycin (62%), sulphonamide (57%), and ampicillin (56%). The ASSuT R-type, also associated to resistance to other antibiotics, was highly prevalent in S. 4,[5],12:i:- (97%) and S. Typhimurium (55%), while the ACSSuT R-type, also associated to other antibiotics, was observed prevalently in S. Typhimurium (20.4%). The genes of more common detection were invA (100%), sspH2 (86.6%), gtgB (84.6%), g8 (80%), sodC1 (77.3%), gipA (52.6%), sspH1 (52.6%).
2018
Characterization of non-typhoidal Salmonella enterica strains of human origin in central and southern Italy / Proroga, Yolande T. R.; Capuano, Federico; Capparelli, Rosanna; Bilei, Stefano; Bernardo, Mariano; Pia Cocco, Maria; Campagnuolo, Rosalba; Pasquale., Vincenzo. - In: ITALIAN JOURNAL OF FOOD SAFETY. - ISSN 2239-7132. - 7:1(2018), pp. 15-20. [10.4081/ijfs.2018.6888]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/724432
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