From: Kirby-Bauer disc approximation to detect inducible third-generation cephalosporin resistance in Enterobacteriaceae
KBDA zone types around CTX
No. organisms (n = 95)
Percentage of the zone type
Susceptibility interpretation
S-type
15
16%
Susceptible 24%
Sl-type
8
8%
C-type
23
24%
Resistant (Inducible) 76%
D-type
49
52%