Abstract
We evaluated MRSA-CI, CHROMagar MRSA II (CHROM), and MDRS-K media for the detection of methicillin-resistant Staphylococcus aureus (MRSA). The results obtained by the Miles & Misra method were similar among the three media. In the comparison of discrimination ability, 120 nasal cavity swab specimens were used. After 24 h of incubation, the sensitivities were 88.4% for MRSA-CI, 90.7% for CHROM, and 88.4% for MDRS-K. The specificity of the three media was 100%. Furthermore，after 48 h of incubation, the sensitivity increased in all the media. The three MRSA detection media showed equal detection capacities for MRSA. The use of MRSA detection media is a convenient method for the detection of MRSA, but it is important that we understand the characteristics of each MRSA detection medium and use each one appropriately.
