A Multicenter Study of Beta-Lactamase Resistant Escherichia coli and Klebsiella pneumoniae Reveals High Level Chromosome Mediated Extended Spectrum β Lactamase Resistance in Ogun State, Nigeria

Table 2

Frequency rate of ESBL positive E. coli and Klebsiella pneumoniae in various clinical samples.

Samples	Number of isolates	ESBL positive isolates
		Escherichia coli		Klebsiella pneumoniae
		Number (𝑁)	Percentage (%)	Number (𝑁)	Percentage (%)
Blood	26 (𝑛=24)*	6	3.0	2	1.0
Urine	73	14	7.1	5	2.5
CSF	9 (𝑛=9)*	0	0	0	0
Semen	3	0	0	0	0
Endocervical	9	4	2.0	0	0
HVS	4	0	0	0	0
Catheter	9	2	1.0	0	0
Sputum	12	0	0	4	2.0
Ear swab	12 (𝑛=5)*	4	2.0	0	0
Wound	20	2	1.0	0	0
Pus	8	2	1.0	2	1.0
Pleural fluid	12	2	1.0	3	1.5
Total	197 (𝑛=38)*	36	18.3	16	8.1

NB: *Isolates recovered from pediatric subjects.