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2 pg/ml were subjected to polymerase chain reaction (PCR) targeting blaTEM, blaSHV, blaCTX and blaPER genes.
Results
The PCT showed that 48.08% of isolates are ESBL producers (125 of 260). The majority of cefotaxime resistant (90.8%) and ceftazidime resistant (92.5%) isolates were ESBL producers. The obtained results by PCR revealed that 5.77% (n=15 of 260) and 24.23 (n=63) of isolates can produce SHV and TEM type enzymes respectively. blaCTX was detected in 20.38% of isolates (n=53) and none of them could produce blaPER type beta-lactamases.
Conclusion
The results of our study showed that the ESBL genes have high prevalence among clinical isolates of E. coli. Such high dissemination of ESBLs is a serious problem for public health and therefore, it's necessary to seek a program for monitoring ESBLs in hospitals.]]>
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