Table.
Phenotypic and genotypic characteristics of the K. pneumoniae clinical isolates
| Phenotypic | No. of isolates (n=270) |
Antimicrobial agents a | ESBLs | Pulsotypes | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Group | Subgroup | CAZ | CTX | FEP | FOX | ETP | IPM | CIP | CHL | GEN | AMK | |||
| I | a | 155 | R | R | R | S | S | S | R | R | S/I/R | S/I/R | CTX-M-15 | A |
| b | 71 | R | R | I | S | S | S | R | R | S/I/R | S/I/R | CTX-M-15 | A | |
| c | 18 | I | R | S | S | S | S | R | S/I/R | S/R | S/I/R | CTX-M-15 | B | |
| d | 7 | S | R | S | S/R | S | S | I/R | I/R | R/S | S | CTX-M-15 | C | |
| e | 4 | R | R | S | S | S | S | R | R | R/S | R/S | CTX-M-15 | A, B ,K , L | |
| II | - | 5 | R | S | S | S | S | S | S | I/S | S | S | SHV-12 | D |
| III | - | 10 | S | S | S | S | S | S | S | I/R/S | S | S | None | miscellaneous |
a
CAZ, ceftazidime; CTX, cefotaxime; FEP, cefepime; FOX, cefoxitin; ETP, ertapenem; IPM, imipenem; CIP, ciprofloxacin; CHL, chloramphenicol; GEN, gentamicin; AMK, amikacin. Susceptibility results were interpreted according to the CLSI criteria: R, resistant; I, intermediate; S, susceptible.