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Measurement of zone of inhibition.
| Disc code (antibiotic name) (S. typhi) | Ave. diameter of zone of inhibition (mm) | Sensitivity pattern |
|---|---|---|
| Ampicillin | 2.5 | R |
| Cefuroxime | 5.5 | R |
| Ceftriaxone | 5.4 | R |
| Chloramphenicol | 17.3 | S |
| Ciprofloxacin | 6.5 | R |
| Ofloxacin | 15.2 | S |
| Amoxicillin | 3.5 | R |
| Augmentin | 5.2 | R |
Key: S: sensitive, I: intermediate, R: resistant.
