Table 3.
Antimicrobial resistance profile of C. jejuni and C. coli isolates from duck farms
| Campylobacter spp | Category of resistance (against one or multiple antimicrobials) | Resistance patterns1 | No. (%) of strains | No. (%) of multidrug resistant isolates |
|---|---|---|---|---|
| C. jejuni (n = 60) | Against one | AMX | 5 (8.33) | 25 (41.67) |
| Against two | AMX-GEN | 10 (16.67) | ||
| AMX-ERY | 10 (16.67) | |||
| AMX-STR | 5 (8.33) | |||
| AMX-TET | 5 (8.33) | |||
| Against three | AMX-ERY-STR | 5 (8.33) | ||
| AMX-AZM-ERY | 5 (8.33) | |||
| Against four | AMX-ERY-STR-TET | 5 (8.33) | ||
| AMX-AZM-ERY-GEN | 5 (8.33) | |||
| AMX-ERY-GEN-STR | 5 (8.33) | |||
| C. coli (n = 95) | Against one | AMX | 10 (10.53) | 35 (36.84) |
| ERY | 5 (5.26) | |||
| Against two | AMX-STR | 20 (21.05) | ||
| AMX-ERY | 10 (10.53) | |||
| AMX-NOR | 5 (5.26) | |||
| AMX-TET | 5 (5.26) | |||
| AMX-GEN | 5 (5.26) | |||
| Against three | AMX-ERY-STR | 15 (15.79) | ||
| Against four | AMX-ERY-STR-TET | 10 (10.53) | ||
| AMX-AZM-ERY-GEN | 5 (5.26) | |||
| AMX-ERY-GEN-STR | 5 (5.26) |
1Antimicrobial resistance at standard doses (μg): Amoxicillin (AMX, 30 µg), Azithromycin (AZM, 30 µg), Ciprofloxacin (CIP, 5 µg), Erythromycin (ERY, 30 µg), Gentamycin (GEN, 10 µg), Norfloxacin (NOR, 10 µg), Streptomycin (STR, 10 µg), and Tetracycline (TET, 30 µg)