Table 4.
Resistance Rates of Haemophilus influenzae to Antimicrobial Agents
| Antimicrobial Agent | Total (n=1065) | Isolates from Adults (n=431) | Isolates from Children (n=634) | |||
|---|---|---|---|---|---|---|
| R | S | R | S | R | S | |
| Ampicillin | 64.9 | 31.2 | 59.6 | 35.7 | 68.7 | 27.9 |
| Amoxicillin–clavulanic acid | 12.7 | 87.3 | 13.3 | 86.7 | 12.3 | 87.7 |
| Ampicillin–sulbactam | 27.0 | 73.0 | 22.1 | 77.9 | 30.6 | 69.4 |
| Cefuroxime | 31.0 | 66.6 | 28.4 | 68.9 | 32.5 | 65.2 |
| Ceftriaxone | 0.0* | 100.0 | 0.0* | 100.0 | 0.0* | 100.0 |
| Meropenem | 1.4* | 98.6 | 1.1* | 98.9 | 1.6* | 98.4 |
| Levofloxacin | 1.2* | 98.8 | 0.9* | 99.1 | 1.5* | 98.5 |
| Trimethoprim–sulfamethoxazole | 47.5 | 40.9 | 43.0 | 44.1 | 50.8 | 38.6 |
| Azithromycin | 28.6* | 71.4 | 29.6* | 70.4 | 27.8* | 72.2 |
| Chloramphenicol | 3.9 | 95.7 | 3.9 | 95.8 | 3.8 | 95.6 |
Notes: *Insensitivity rate, sensitive breakpoints only.