Oxacillin-resistant staphylococci can appear susceptible in vitro to other β-lactam agents such as:

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Sometimes,oxacillin-resistant staphylococci can appear susceptible in vitro to other β-lactam agents,such as cephalosporins; however,these are clinically ineffective.Consequently,all oxacillin-resistant staphylococci must be reported as resistant to all β-lactam agents,including cephalosporins,β-lactam/β-lactamase inhibitor combinations,and carbapenems,if those agents are tested,regardless of the in vitro test results.

Oxacillin-Resistant Staphylococci Can Appear Susceptible in Vitro to Other β-Lactam