Table 1.

Primers for the bla-CTX-M, bla-TEM, and bla-SHV genes.

Gene	Primers (5′-3′)	Amplicon size (bp)
SHV	F: 5`-GTCAGCGAAAAACACCTTGCC-3`	383 bp
	R: 5`-GTCTTATCGGCGATAAACCAG-3′
TEM	F: 5`-GAGACAATAACCCTGGTAAAT-3`	459 bp
	R: 5′-AGAAGTAAGTTGGCAGCAGTG-3′
CTX-M	F: 5′-GAAGGTCATCAAGAAGGTGCG-3′	560 bp
	R: 5′-GCATTGCCACGCTTTTCATAG-3′