Emergence of Salmonella enterica serovar infantis harboring IncI1 plasmid with bla(CTX-M-14) in a broiler farm in Japan.
J Vet Med Sci
; 74(9): 1213-6, 2012 Sep.
Article
de En
| MEDLINE
| ID: mdl-22673563
ABSTRACT
Cefotaxime (CTX)-resistant and -susceptible Salmonella enterica serovar Infantis isolates obtained from broilers raised on a farm in January 2010 in Japan were characterized to establish their resistance determinants. The CTX-resistant isolates produced CTX-M-14 extended-spectrum ß-lactamase and harbored 2 distinct plasmid of approximately 140- and 95-kb, whereas the CTX-susceptible isolates harbored one 140-kb plasmid. The 95-kb plasmids were replicon typed as IncI1 carrying the bla(CTX-M-14) gene, while the 140-kb plasmids were IncP and harbored the aphA1, aadA1, tetA, and sul1 genes. Genetic fingerprinting by pulsed-field gel electrophoresis revealed similar macrorestriction profiles amongst CTX-resistant and susceptible isolates, suggesting a clonal relationship. The presence of CTX-resistant S. Infantis on a broiler farm has occurred through the acquisition of IncI1 resistance plasmid.
Recherche sur Google
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Maladies de la volaille
/
Salmonelloses animales
/
Poulets
/
Salmonella enterica
/
Maladies transmissibles émergentes
Limites:
Animals
Pays/Région comme sujet:
Asia
Langue:
En
Journal:
J Vet Med Sci
Sujet du journal:
MEDICINA VETERINARIA
Année:
2012
Type de document:
Article
Pays d'affiliation:
Japon