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Table 3 Co-carriage of ESBLs genes and aac(6)- Ib-cr gene in Enterobacteriaceae isolates

From: Prevalence and molecular characteristics of ESBL and AmpC β -lactamase producing Enterobacteriaceae strains isolated from UTIs in Egypt

aac(6)-Ib-cr (n = 165) Species ESBL genes Numbers of isolates
aac(6)- Ib-cr associated with CTX-M group genes E. coli CTX-M-15 22
E. coli CTX-M-15 + 1 25
K. pneumoniae CTX-M-15 + 1 24
Citrobacter spp CTX-M-15 + 1 22
Proteus spp. CTX-M-15 + 1 2
E. coli CTX-M-1 19
K. pneumoniae CTX-M-1 6
Citrobacter spp. CTX-M-1 3
E. coli CTX-M-8 2
Total    125 (75.5%)
aac(6)-Ib-cr not associated with CTX-M group genes
Total
E. coli SHV + TEM 21
E. coli SHV 15
E. coli TEM 2
Proteus spp. SHV 2
   40 (24.2%)
P value    < 0.01