Research Article

Phenotypic and Genotypic Characterization of Extended Spectrum Beta-Lactamase-Producing Clinical Isolates of Escherichia coli and Klebsiella pneumoniae in Two Kenyan Facilities: A National Referral and a Level Five Hospital

Table 3

Classification clinical specimens from which the E. coli and K. pneumoniae isolates were obtained.

Specimen typeTotal (n)ELVHKNHTotal (n)
E. coli n (%)K. pneumoniae n (%)E. coli n (%)K. pneumoniae n (%)

Urine8226 (76.5)9 (75)34 (32.7)13 (11.3)82
Blood cultures770 (0)0 (0)10 (9.6)67 (58.3)77
Pus swabs651 (2.9)0 (0)51 (49)13 (11.3)65
Tracheal aspirates170 (0)0 (0)1 (1)16 (13.9)17
Cerebral Spinal Fluid110 (0)0 (0)6 (5.8)5 (4.3)11
Stool97 (20.6)2 (16.7)0 (0)0 (0)9
High vaginal swab30 (0)0 (0)2 (1.9)1 (0.9)3
Pleural fluid10 (0)1 (8.3)0 (0)0 (0)1
Total (N)2653412104115265

KNH: Kenyatta national hospital; ELVH: Embu level V hospital; n: sample size. The values in parenthesis are percentage proportions of isolates in each clinical specimen.