Table 2 Susceptibility rates of Enterobacteriaceae and Acinetobacter baumanii between November 1999 and January 2002 (Microdilution technique).
Antibiotics | Klebsiella spp (n: 86) | A. baumanii (n: 83) | E.coli (n: 30) | Enterobacter spp (n: 24) | Proteus spp. (n: 13) | Serratia spp. (n: 13) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | MIC50/90 | Susc. % | MIC50/90 | Susc. % | MIC50/90 | Susc. % | MIC50/90 | Susc. % | MIC50/90 | Susc. % | MIC50/90 | Susc. % |
Ampicillin | 8/>16 | 10.5 | 16/>16 | 7.2 | 8/>16 | 10.0 | 8/>16 | 4.2 | 8/>16 | 15.4 | 8/>16 | - |
Amoxicillin/clav. | 4/>16 | 77.9 | 16/>16 | 7.2 | 4/>16 | 13.3 | 8/>16 | 4.2 | 4/>16 | 84.6 | 8/>16 | - |
Aztreonam | 2/>16 | 73.3 | 8/>16 | 6.0 | 2/>16 | 66.6 | 2/>16 | 45.8 | 2/>16 | 92.3 | 2/16 | 84.6 |
Piperacillin | 16/>64 | 60.5 | 16/128 | 39.7 | 16/128 | 30.0 | 16/128 | 41.7 | 16/>64 | 84.6 | 16/128 | 61.5 |
Ticarcillin | 32/>64 | 25.6 | 16/128 | 7.2 | 16/128 | 26.7 | 32/128 | 54.2 | 32/>64 | 53.8 | 32/128 | 38.5 |
Ticarcillin/clav. | 16/128 | 60.5 | 16/128 | 9.6 | 16/128 | 40.0 | 16/128 | 58.3 | 16/>64 | 92.3 | 16/128 | 61.5 |
Cefazolin | 8/>16 | 77.9 | 16/>16 | 1.2 | 8/>16 | 46.7 | 8/>16 | 8.3 | 8/>16 | 69.2 | 8/>16 | - |
Cefuroxime | 8/>16 | 88.4 | 16/>16 | 3.6 | 8/>16 | 46.7 | 8/>16 | 12.5 | 8/>16 | 76.9 | 8/>16 | - |
Cefotaxime | 8/64 | 96.5 | 16/64 | 9.6 | 16/64 | 73.3 | 8/64 | 58.3 | 8/64 | 100.0 | 8/32 | 84.6 |
Ceftazidime | 1/>16 | 84.9 | 4/>16 | 42.2 | 1/>16 | 66.7 | 1/32 | 37.5 | 1/>16 | 92.3 | 1/>16 | 76.9 |
Ceftriaxone | 16/>32 | 90.7 | 16/64 | 12.0 | 16/>32 | 73.3 | 8/>32 | 50.0 | 16/>32 | 100.0 | 8/32 | 84.6 |
Amikacin | 16/>32 | 93.0 | 16/>32 | 54.2 | 16/>32 | 93.3 | 8/>32 | 100.0 | 16/>32 | 100.0 | 8/>32 | 92.3 |
Gentamicin | 4/16 | 89.5 | 4/16 | 65.0 | 4/>8 | 90.0 | 4/>8 | 95.8 | 4/>8 | 69.2 | 4/>8 | 84.6 |
Tobramycin | 4/16 | 84.9 | 4/16 | 91.5 | 4/>8 | 93.3 | 4/>8 | 41.7 | 4/>8 | 84.6 | 4/>8 | 76.9 |
Ciprofloxacin | 1/>2 | 89.5 | 1/>2 | 66.2 | 1/>2 | 66.6 | 1/>2 | 100.0 | 1/>2 | 100.0 | 1/>2 | 92.3 |
Ä°mipenem | 2/>8 | 95.3 | 4/>8 | 79.5 | 2/>8 | 96.6 | 2/>8 | 79.2 | 2/>8 | 100.0 | 2/>8 | 69.2 |
Tetracycline | 4/>8 | 81.4 | 4/>8 | 56.6 | 4/>8 | 63.3 | 4/>8 | 79.2 | 4/>8 | 15.4 | 4/>8 | 15.4 |
Cotrimoxazole | 1/>2 | 81.4 | 1/>2 | 22.9 | 1/>2 | 53.3 | 1/>2 | 75.0 | 1/>2 | 23.1 | 1/>2 | 69.2 |