Table 3.

Number and percent of β-lactamases present in K. pneumoniae collected from Mofid Children and Taleghani Hospitals, Tehran, Iran.

β-Lactamases content	Taleghani number (%)	Mofid Children number (%)	Total number (%)
ESBL	28 (62.3%)	20 (52.7%)	48 (57.5%)
MBL	2 (4.4%)	1 (2.6%)	3 (3.5%)
Amp-C	14 (31.3%)	9 (23.7%)	23 (28%)
KPC	3 (6.7%)	2 (5.3%)	5 (6%)
ESBL + MBL	2 (4.4%)	1 (2.6%)	3 (4%)
ESBL + Amp-C	11 (24.4%)	12 (31.6%)	23 (28%)
ESBL + KPC	3 (6.7%)	2 (5.3%)	5 (6%)
ESBL + MBL + Amp-C	2 (4.4%)	1 (2.6%)	3 (3.5%)
ESBL + Amp-C + KPC	2 (4.4%)	1 (2.6%)	3 (3.5%)
ESBL + MBL + KPC	0 (0%)	0 (0%)	0 (0%)
ESBL + MBL + KPC + Amp-C	0 (0%)	0 (0%)	0 (0%)