Table 3.
AMR patterns in all MDR E.coli isolates (≥3 drug classes).
| Resistance to # classes | Resistance pattern | Ratioa | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| beta-lactam | Macrolide | Phenicol | Quinolone | Aminoglycoside | Sulfonamide | Tetracycline | ||||||||||||
| AMC | AMP | CRO | FOX | TIO | AZM | CHL | CIP | NAL | GEN | STR | SSS | SXT | TET | |||||
| 5 | R | R | R | R | R | R | R | R | R | 3/5 | ||||||||
| R | R | R | R | R | R | R | R | R | R | 2/5 | ||||||||
| 4 | R | R | R | R | R | R | R | R | R | 1/7 | ||||||||
| R | R | R | R | 4/7 | ||||||||||||||
| R | R | R | R | 2/7 | ||||||||||||||
| 3 | R | R | R | R | R | R | R | 1/25 | ||||||||||
| R | R | R | R | R | R | R | 1/25 | |||||||||||
| R | R | R | R | 1/25 | ||||||||||||||
| R | R | R | R | 1/25 | ||||||||||||||
| R | R | R | R | R | 1/25 | |||||||||||||
| R | R | R | R | 1/25 | ||||||||||||||
| R | R | R | 1/25 | |||||||||||||||
| R | R | R | 1/25 | |||||||||||||||
| R | R | R | R | 3/25 | ||||||||||||||
| R | R | R | 7/25 | |||||||||||||||
| R | R | R | R | 1/25 | ||||||||||||||
| R | R | R | 6/25 | |||||||||||||||
| Total | 37/37 | |||||||||||||||||
There were seven drug classes: 1. Beta-lactam (AMC, Amoxycillin + Clavulanic acid; AMP, Ampicillin; FOX, Cefoxitin; CRO, Ceftriaxone, TIO, Ceftiofur), 2. Aminoglycosides (GEN, Gentamicin; STR, Streptomycin), 3. Quinolones (NAL, Nalidixic acid; CIP, Ciprofloxacin), 4. Sulfonamides (SSS, Sulfisoxazole; SXT, Trimethoprim sulfamethoxazole), 5. Macrolides (AZM, Azithromycin), 6. Phenicols (CHL, Chloramphenicol), 7. Tetracyclines (TET, Tetracycline). Drugs were grouped in classes by clear/grey areas.
Antimicrobials belonging to the same drug class were placed next to each other and separated from those in other drug classes by shading.
aRatio is defined as the number of isolates of the same resistance pattern over the total number of isolates.