Table 1.
Salmonella enterica isolates and minimum concentration of ciprofloxacin (CIP) and ceftazidime (CAZ) required to inhibit their growth.
| Isolates (ID) | Origin | MIC (µg/ml) | |
|---|---|---|---|
| CIP | CAZ | ||
| S. Agona (S48) | Feathers meal | 0.01 | 2 |
| S. Agona (S79) | Meat meal | 0.005 | 1 |
| S. Enteritidis (152) | Ready-to-eat-food | 0.005 | 0.5 |
| S. Enteritidis (192) | Poultry carcass | 0.01 | 1 |
| S. Enteritidis (393) | Food handler | 0.01 | 1 |
| S. Enteritidis (4SA) | Porcine faeces | 0.005 | 1 |
| S. Enteritidis (S45) | Meat meal | 0.005 | 2 |
| S. Infantis (S02) | Meat meal | 0.01 | 2 |
| S. Infantis (S67) | Viscera meal | 0.03 | 1 |
| S. Schwarzengrund (S58) | Flesh and bones meal | 0.005 | 1 |
MIC, minimum inhibitory concentration.
MIC breakpoints for CIP: ≤0.06 µg/ml, susceptible; 0.12–0.5 µg/ml, intermediate; ≥1 µg/ml, resistant. MIC breakpoints for CAZ: ≤4 µg/ml, susceptible; 8 µg/ml, intermediate; ≥16 µg/ml, resistant (CLSI Document M100-S28)32.