Prevalence and Characterization of ESBL- and AmpC-producing Escherichia coli from Cattle
Yükleniyor...
Tarih
2017
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Kafkas Univ, Veteriner Fakultesi Dergisi
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, it was aimed to determine the prevalence of extended spectrum beta-lactamase (ESBL) and/or AmpC type beta-lactamase (AmpC) producing Escherichia coli from cattle in Hatay. For this purpose, 312 rectal swabs samples were collected from apparently healthy cattle. ESBL production was phenotypically investigated by disc combination method and double disc synergism test and beta-lactamase genes (bla(CTX-M), bla(CMY-2), bla(SHV), bla(OXA), and bla(TEM)) and plasmid mediated quinolone resistance (PMQR) genes (qnrA, qnrB, qnrS and aac(6')-Ib) were screened by polymerase chain reaction (PCR) and subsequent sequence analysis. Antimicrobial susceptibility of the isolates were determined using disc diffusion method and their phylogenetic groups were also searched by PCR. Twenty six (8.3%) isolates were found to be ESBL producer by phenotypic tests. The following ESBL/AmpC genes were detected: bla(CTX-M-15) (n=12), bla(CTX-M-1) (n=11), bla(CTX-M-3) (n=2), and bla(CMY-2) (n=1). PMQR genes were detected in 11 (42.3%) ESBL producing E. coli isolates and these isolates were only positive for aac(6')-Ib-cr and qnrS1 genes. Twenty two (84.6%) of the isolates exhibited multidrug resistance (MDR) phenotype. ESBL/AmpC producing E. coli isolates were observed to be belonged to B1 (50%), A (34.6%) and D (15.4%) phylogroups. This study was the first to describe the presence of CTX-M-15, CTX-M-3, CTX-M-1 and CMY-2 producing E. coli in cattle in Turkey and the co-existence of aac(6')-Ib-cr and qnrS1 genes in some isolates.
Açıklama
Anahtar Kelimeler
Escherichia coli, Cattle, ESBL, AmpC
Kaynak
Kafkas Universitesi Veteriner Fakultesi Dergisi
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
23
Sayı
1
