Table 2. Antimicrobial susceptibility (Disc diffusion test) of β-lactamase-producing anaerobic bacteria against β-lactam antibiotics.
| No of isolates resistant to β-lactam antibiotics (%) | ||||
|---|---|---|---|---|
| aDisc diffusion test (n=85) | ||||
| cfxA gene | Ampicillin | Penicillin | ||
| R | S | R | S | |
| Present (n=43) | 18 (41.86) | 25 (58.14) | 24 (55.81) | 19 (44.19) |
| Absent (n=42) | 14 (33.33) | 28 (66.67) | 8 (19.05) | 34 (80.95) |
aDisc diffusion test (disk content 10 µg): R: Resistant ≤28 mm), S: Susceptible ≥29 mm)