Coexistence of β-Lactamases in Community-Acquired Infections in a Tertiary Care Hospital in India

Table 2

Organism-wise distribution of β-lactamases (n = 293).

Organisms	Frequency	Percent (%)	ESBL	MBL	AmpC
E. coli	161	54.9	154	6	32
Klebsiella pneumonia	86	29.4	74	4	14
Citrobacter koseri	20	6.8	19	0	3
Citrobacter freundii	15	5.1	14	0	3
Proteus mirabilis	7	2.4	6	1	0
Proteus vulgaris	2	0.7	1	0	0
Enterobacter spp.	1	0.3	1	0	1
Klebsiella oxytoca	1	0.3	0	1	0
Total	293	100.0	269	12	53