Differences in antibiotic susceptibility between Staphylococcus epidermidis and Staphylococcus saprophyticus

Abstract
The levels of resistance of 93 strains of Staphylococcus epidermidis and 80 strains of S. saprophyticus to benzylpenicillin, methicillin and sodium fusidate were determined. The strains of S. epidermidis could be divided into ‘sensitive’ and ‘resistant’ populations, but strains of S. saprophyticus could not be so divided. Production of β-lactamase by strains of S. saprophyticus was detected using the chromogenic cephalosporin 87/312.