Table 5.
Multiple antimicrobial resistance profiles of E. coli isolates.
| Number of antimicrobials | Isolates from calves (n = 56) | |
|---|---|---|
| Resistance pattern (no. of isolates) | No. of isolates (%) | |
| Two | NEO, AMC (7); W, AMC (3); AMC, S3 (1); W, S3 (2); NEO, S3 (1); NEO, OT (1) | 15 (26.8) |
| Three | NEO, AMC, S3 (1); W, AMC, S3 (1); NEO, W, AMC (2); NEO, OT, S3 (2); NEO, AMC, OT (1); S, W, S3 (1) | 8 (14.3) |
| Four | NEO, AMC, OT, CXT (1); NEO, W, AMC, S3 (2); NEO, AMC, CXT, S3 (1); NEO, AMC, OT, S3 (2); NEO, W, OT, S3 (3) | 9 (16.1) |
| Five | W, AMC, OT, CXT, S3 (1); NEO, W, AMC, OT, S3 (1) | 2 (3.6) |
| Six | NEO, S, W, AMC, OT, S3 (1); GEN, NEO, S, W, CXT, S3 (1) | 2 (3.6) |
| Seven | GEN, NEO, W, AMC, OT, CHL, S3 (1) | 1 (1.8) |
| Eight | NEO, S, W, AMC, OT, CXT, NOR, S3 (1) | 1 (1.8) |
| Total | 38 (67.8) | |
AMC Amoxacillin, CHL Chloramphenicol, CPR Ciprofloxacillin, CXT Cefoxitin, GEN Gentamycin, NEO Neomycin, NOR Norfloxacillin, OT Oxytetracycliine, S Streptomycin, S3 Sulfonamides, W Trimethoprim.