Table 4.

Total numbers and percentages of isolates susceptible to selected antibioticsa

OrganismTotal no. of KPC producersNo. of isolates susceptible/total (%)
CeftriaxoneCefepimeImipenemPiperacillin-tazobactamAmikacinCiprofloxacinESBL
K. pneumoniae33321/288 (7)31/300 (10)89/316 (28)7/299 (2)114/330 (35)46/332 (14)80/332 (24)
E. coli6110/52 (19)10/51 (20)44/53 (83)24/52 (46)39/60 (65)10/60 (17)37/60 (62)
P. aeruginosa992/92 (2)6/98 (6)6/95 (6)16/98 (16)62/95 (59)7/98 (7)NDb
A. baumannii410/40 (0)0/40 (0)11/33 (33)2/34 (6)4/41 (10)0/41 (0)ND
  • a Data, including those on ESBL detection, are from the participating hospitals' antimicrobial susceptibility reports. The susceptibility breakpoints (μg/ml) for all isolates are as follows: ≤8, cefepime; ≤4, imipenem; ≤16, amikacin; ≤1, ciprofloxacin. The susceptibility breakpoints of ceftriaxone are ≤1 μg/ml for Enterobacteriaceae and ≤8 μg/ml for P. aeruginosa and A. baumannii. The susceptibility breakpoints (μg/ml) of ceftriaxone are ≤1 and ≤8 for the Enterobacteriaceae P. aeruginosa and A. baumannii. The susceptibility breakpoints (μg/ml) of piperacillin-tazobactam are ≤64 and 4 for P. aeruginosa and ≤16 and 4 for A. baumannii.

  • b ND, not done.