Extended spectrum beta-lactamase SHV-12-producing Salmonella from poultry.
Salmonella strains isolated from poultry and poultry products over the period 2005-2006 have been investigated in order to ascertain the presence of extended spectrum cephalosporins (ESC) resistance. Twelve (ESC)-resistant isolates (n=1 S. Enteritidis, n=1 S. Braenderup and n=10 S. Livingstone) were characterized as SHV-12-positive. The multi-drug resistant S. Livingstone SHV-12-producing isolates, untypeable by pulsed-field gel electrophoresis (PFGE), showed a clonal relationship by random amplified polymorphic DNA (RAPD) analysis. The SHV-12 beta-lactamase is reported for the first time in Salmonella enterica strains isolated from poultry in Italy. The results suggest poultry as a source of Salmonella carrying extended spectrum beta-lactamases (ESBLs) genes and highlights the need of monitoring animal productions to prevent spreading of (ESC)-resistant strains.
National Reference Laboratory for Salmonella, Istituto Zooprofilattico delle Venezie, Viale dell'Università 10, 35020 Legnaro (Padova), Italy. gchiaretto@izsvenezie.it
Giuseppina
G
Chiaretto
Paola
P
Zavagnin
Francesca
F
Bettini
Marzia
M
Mancin
Claudio
C
Minorello
Cristina
C
Saccardin
Antonia
A
Ricci
D000818:Animals; D001483:Base Sequence; D024901:Drug Resistance, Multiple, Bacterial; D016521:Electrophoresis, Gel, Pulsed-Field / Q000662:veterinary; D005516:Food Microbiology; D006801:Humans; D008826:Microbial Sensitivity Tests / Q000662:veterinary; D008969:Molecular Sequence Data; D011200:Poultry; D011202:Poultry Products / Q000382:microbiology; D019105:Random Amplified Polymorphic DNA Technique / Q000662:veterinary; D012475:Salmonella / Q000187:drug effects* / Q000201:enzymology*; D012703:Serotyping / Q000662:veterinary; D018440:beta-Lactam Resistance; D001618:beta-Lactamases / Q000096:biosynthesis / Q000235:genetics / Q000494:pharmacology
C107198:beta-lactamase SHV-12; D001618:beta-Lactamases