Table 4.

Incidence of genes encoding beta lactamase enzymes and a combination of these genes in the isolated P. aeruginosa strains

Gene	Isolates (%)	Gene combination	Isolates (%)
TEM	0 (0%)	bla SHV-2a	21 (22.1)
bla SHV-2a	25 (26.31)	bla CTX-M-28	1 (1.05)
bla CTX-M-28	18 (18.94)	bla OXA-677	39 (41.05)
bla CTX-M9	0	PER	1 (1.05)
bla CTX-M25	0	SHV-2a + PER	1 (1.05)
bla OXA-677	56 (58.94)	SHV-2a + VEB-2	2 (2.1)
bla PER	4 (4.21)	PER + VEB-2	1 (1.05)
bla VEB-2	4 (4.21)	OXA-677 + CTX-M-28	17 (17.89)
VIB	0	SHV-2a + PER +	1 (1.05)
GIM	0	VEB-2
SIM	0
SPM	0
IMP	0