Image of micro colonies of staphylococci formed on each medium by microcolony detection method (MCD) (×100) a:Methicillin-susceptible staphylococci on the BTB agar, b:Methicillin-resistant staphylococci on the BTB agar, c:Methicillin-susceptible staphylococci on the CHROMagar MRSA medium, there is no formation of small colonies, only red blood cells can be confirmed, d: Methicillin-resistant staphylococci on the CHROMagar MRSA medium.