Table 1.
Antimicrobial susceptibility of gram-negative bacteria from wound infections
| Antimicrobial resistance [%, (n)] | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Species (n) | Ampicillin | Ampicillin/sulbactam | Piperacillin/tazobactam | Cefuroximea | Cefotaxime | Ceftazidime | Ertapenem | Meropenem | Gentamicin | Ciprofloxacin | Trimethoprim/sulfamethoxazole | Chloramphenicol | Colistin |
| Citrobacter sp. (21)b | 100% (21) | 71% (15) | 24% (5) | NA | 19% (4) | 19% (4) | 0% (0) | 0% (0) | 38% (8) | 38% (8) | 48% (10) | 38% (8) | ND |
| Klebsiella sp. (55)c | 100% (55) | 78% (43) | 51% (28) | 56% (31) | 56% (31) | 53% (29) | 0% (0) | 0% (0) | 58% (32) | 47% (26) | 67% (37) | 46% (25) | ND |
| Klebsiella pneumoniae (42) | 100% (42) | 83% (35) | 67% (28) | 71% (30) | 71% (30) | 67% (28) | 0% (0) | 0% (0) | 74% (31) | 60% (25) | 83% (35) | 55% (23) | ND |
| Morganella morganii (25) | 100% (25) | 96% (24) | 12% (3) | NA | 40% (10) | 16% (4) | 4% (1) | 0% (0) | 48% (12) | 60% (15) | 80% (20) | 80% (20) | NA |
| Proteus sp. (53)c | 77% (41) | 28% (15) | 6% (3) | NA | 19% (10) | 9% (5) | 4% (2) | 2% (1) | 21% (11) | 13% (7) | 47% (25) | 40% (21) | NA |
| Proteus mirabilis (31) | 61% (19) | 32% (10) | 3% (1) | 26% (8) | 26% (8) | 13% (4) | 3% (1) | 0% (0) | 32% (10) | 19% (6) | 65% (20) | 48% (15) | NA |
| Pseudomonas aeruginosa (75) | NA | NA | 32% (24) | NA | NA | 24% (18) | NA | 0% (0) | 56% (19) | 37% (28) | NA | NA | 1% (1) |
NB: Alcaligenes faecalis (n = 22) were not tested as no EUCAST clinical breakpoints are currently available; NA not applicable, ND not done
aFor intravenous application
bIncluding Citrobacter amalonaticus (n = 1), Citrobacter freundii (n = 13), Citrobacter koseri (n = 7)
cIncluding Klebsiella aerogenes (n = 6), Klebsiella oxytoca (n = 4), Klebsiella pneumoniae (n = 42), Klebsiella sp. (n = 1), Klebsiella variicola (n = 2)
cIncluding Proteus hauseri (n = 14), Proteus mirabilis (n = 31), Proteus penneri (n = 1), Proteus vulgaris (n = 7)