Table 6.

Selected beta-lactamase genes in cefotaxime resistant E. coli from wastewater treatment plants

Group	Beta-lactamase genes	%
ESBLs genes (A) n = 38	blaCTX-M	52.6
	blaTEM	84.2
	blaSHV	0
	blaCTX-M + blaTEM	36.8
Carbapenem genes (B) n = 38	blaKPC-2	15.8
	blaOXA-1	57.9
	blaVIM	0
	blaNDM-1	15.8
	blaKPC-2 + blaOXA-1	15.8
	blaNDM-1 + blaOXA-1	10.5
A + B n = 38	blaCTX-M + blaKPC	10.5
	blaCTX-M + blaOXA-1	36.8
	blaCTX-M + blaNDM-1	10.5
	blaTEM + blaKPC-2	15.8
	blaTEM + blaOXA-1	52.6
	blaTEM + blaNDM-1	15.8