TABLE 5.
Patterns of antimicrobial agent resistance in E. coli isolated from various sources (feces, environment, septage)
| Antimicrobial agent | Dairy cattle | Beef cattle | Swine | Poultry | Small ruminants | Equids | Farmed deer | Wild geese | Companion animals | Human septage |
|---|---|---|---|---|---|---|---|---|---|---|
| Neomycin | Ra | r | R | R | r | S | S | S | S | S |
| Gentamicin | r | r | R | R | r | R | S | S | S | S |
| Streptomycin | R | R | R | R | R | R | S | S | R | R |
| Chloramphenicol | r | R | R | R | R | S | S | S | S | S |
| Ofloxacin | S | S | R | S | S | S | S | S | S | S |
| Sulfamethoxazole-trimethoprim | R | r | r | r | r | R | S | S | S | S |
| Tetracycline | R | R | R | R | R | R | R | R | R | R |
| Ampicillin | R | R | R | r | r | R | S | S | R | S |
| Nalidixic acid | S | S | S | r | r | S | S | S | S | S |
| Nitrofurantoin | R | R | S | r | r | S | S | S | S | S |
| Cephalothin | R | R | R | R | R | r | R | R | R | R |
| Sulfisoxazole | R | R | R | R | R | R | S | S | S | S |
a
R, E. coli isolates from fecal, farm environment, and septage samples all exhibited resistance; r, E. coli isolates from either fecal, farm environment, or septage samples exhibited resistance; S, all E. coli isolates from fecal, farm environment, or septage samples exhibited susceptibility.