Table 4.

Correlation between oxacillin resistance and the presence of the resistance gene mecA

SpeciesNo. of strains (type) tested by disk diffusion with oxacillinPCR results for mecA
No. positiveNo. negative
S. aureus66 (resistant)624
S. aureus140 (susceptible)1139
S. epidermidis146 (resistant)1460
S. epidermidis42 (susceptible)339