2021 Volume 70 Issue 4 Pages 685-690
To efficiently isolate methicillin-resistant Staphylococcus aureus (MRSA) using culture media, we evaluated the performance of five media for the detection of Staphylococcus aureus, and we compared the performance of seven media for the detection of MRSA with that of the drug susceptibility test. Sixty Staphylococcus strains (28 MRSA strains, 17 methicillin-susceptible Staphylococcus aureus (MSSA) strains, and 15 non-S. aureus strains) were used for evaluation of culture media. As a result, the sensitivity and specificity of culture media for the detection of S. aureus were 91%–100% and 87%–100%, respectively. Moreover, in comparison with the drug susceptibility test, the positive and negative predictive values for MRSA were 90%–100% and 94%–100%, respectively. We recommend that the properties of media used to efficiently isolate MRSA should be clarified in future studies.
