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Frequency of cefoxitin resistance among AmpC positive
| Total AmpC positive isolates (n) | cefoxitin resistant (n) | cefoxitin susceptible (n) |
|---|---|---|
| E.coli (11) | 9 | 2 |
| Klebsiella (9) | 8 | 1 |
| Acinetobacter (6) | 6 | - |
| Pseudomonas (24) | 18 | 6 |
| Enterobacter (14) | 10 | 4 |
| Citrobacter (5) | 5 | - |
| Proteus (15) | 9 | 6 |
| Morganella (1) | 1 | - |
| Providencia (1) | 1 | - |
