Table 4: Prevalence of bla genes either alone or in combination.

bla genes ESBL producers Total
E. coli
(n= 38)
K. pneumoniae
(n= 6)
K. oxytoca
(n= 6)
C. koseri
(n=1)
Providencia spp.
(n=1)
n= 52
Single bla gene (blaCTX-M only) 22 (57.9) 0 (0.0) 1 (16.6) 1 (100.0) 0 (0.0) 24 (46.1)
bla genes in combination 16 (42.1) 6 (100) 5 (83.3) 0 (0.0) 1 (100) 28 (53.9)
blaCTX-M + blaTEM 8 (21) 1 (16.6) 1 (16.6) 0 (0.0) 1 (100) 11 (21.2)
blaCTX-M + blaSHV 6 (15.8) 1 (16.6) 3 (50.0) 0 (0.0) 0 (0.0) 10 (19.2)
blaCTX-M + blaSHV + blaTEM 2 (5.3) 4 (66.6) 1 (16.6) 0 (0.0) 0 (0.0) 7 (13.5)