| Staphylococcus aureus resistant to methicillin (oxacillin) but resistant to fewer other drug classes than the multiple drug resistant MRSA strains. Oxacillin (or cefoxitin) represents all other β-lactams (and cephamycins) and resistance to either of these predicts non-susceptibility to all categories of β-lactam antimicrobials i.e. all categories of penicillins, cephalosporins, β-lactamase inhibitors and carbapenems. |
