Escherichia coli resistant to ampicillin. Beta-lactam antibiotics.
| AMP | Ampicillin | AMC | Amoxicillin/Clavulanate | CXM | Cefuroxime | SXT | Trimethoprim-Sulfamethoxazole |
| CIP | Ciprofloxacin | FOS | Fosfomycin | NFE | Nitrofurantoin |
Escherichia coli resistant to ampicillin. Beta-lactam antibiotics.