Evaluación de métodos para el estudio de la sensibilidad a oxacilina y penicilina en 60 aislamientos de Staphylococcus lugdunensis

We detected no resistance to oxacillin in S. lugdunensis. All the methods evaluated were adequate for determining oxacillin resistance. The Vitek 2 System is useful for detecting penicillin resistance, but the ß-lactamase test should be applied to isolates with a MIC=0.25 μg/ml to avoid the interpretation of false resistance to this antibiotic.