TABLE 1.
Antibiotic susceptibility patterns of 236 H. influenzae isolates according to serotype
| Antibiotic susceptibility patterna | No. of strains/serotype
|
Total | ||||||
|---|---|---|---|---|---|---|---|---|
| a | b | c | d | e | f | NT | ||
| Amp2 I | 4 | 4 | ||||||
| Amp Ib | 1 | 1 | 1 | 3 | ||||
| Amp2 I, Sxt R | 2 | 2 | ||||||
| Amp I, Sxt R | 5 | 5 | ||||||
| Amp I, Cec I | 4 | 4 | ||||||
| Amp I, Cec R | 1 | 1 | ||||||
| Amp R | 1 | 7 | 2 | 21 | 31 | |||
| Amp R, Amc R | 1 | 1 | ||||||
| Amp R, Cec I | 1 | 1 | ||||||
| Amp R, Clr R | 1 | 2 | 3 | |||||
| Amp R, Sxt R | 4 | 4 | ||||||
| Amp R, Sxt R, Amc R, Cec R | 1 | 1 | ||||||
| Amp R, Chl R, Sxt R | 1 | 1 | ||||||
| Cec I | 1 | 1 | ||||||
| Clr R | 1 | 1 | 1 | 3 | ||||
| Sxt R | 1 | 6 | 7 | |||||
| Sxt R, Cec I | 1 | 1 | ||||||
| Susceptible to all | 50 | 9 | 4 | 1 | 1 | 7 | 91 | 163 |
| Total | 51 | 18 | 4 | 1 | 5 | 10 | 147 | 236 |
a
I, intermediate; R, resistant. The antibiotics tested were ampicillin (Amp2, 2 μg; Amp, 10 μg); chloramphenicol (Chl), 30 μg; ceftiaxone (Cro), 30 μg; trimethoprim-sulfamethoxazole (Sxt), 25 μg; amoxicillin-clavulanic acid (Amc), 25 μg; cefaclor (Cec), 30 μg; ciprofloxacin (Cip), 5 μg; moxifloxacin (Mxf), 5 μg; and clarithromycin (Clr), 15 μg.
b
Intermediate values with the 2-μg and 10-μg ampicillin disks.