Table 1.

Polymerase chain reaction (PCR) primer sequences for the detection of extended-spectrum β-lactamases genes in E. coli

Target gene	Oligonucleotide primer sequences (5′ to 3′)	Amplicon size (bp)	Reference
bla TEM-1F	CAGCGGTAAGATCCTTGAGA	643	11
bla TEM-1R	ACTCCCCGTCGTGTAGATAA
bla SHV-1F	GGCCGCGTAGGCATGATAGA	714	11
bla SHV-1R	CCCGGCGATTTGCTGATTTC
bla OXA-1F	AATGGCACCAGATTCAACTT	599	11
bla OXA-1R	CTTGGCTTTTATGCTTGATG
bla CTX-M-1F	GAAGGTCATCAAGAAGGTGCG	560	12
bla CTX-M-1R	GCATTGCCACGCTTTTCATAG