Details for MRSA ID vs BBL MRSA ii JCM 2010

Two chromogenic media for the detection of MRSA were compared: BBL CHROMagar MRSA II (BD) and

MRSA ID agar (bioMe´rieux). Following overnight nonselective enrichment, 1,919 screening samples were

inoculated on both chromogenic agars. After 24 h, the sensitivities of both media were high and comparable.

Both media showed an important decrease in specificity after 48 h of incubation (decreases of 8% for MRSA

II and 10% for MRSA ID), but MRSA II was significantly more specific at both time points.