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Updated: Jun 15, 2026

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
Published on: May 8, 2013
Performance of a new chromogenic medium, BBL CHROMagar MRSA II (BD), for detection of methicillin-resistant
Kristien Van Vaerenbergh1, Reinoud Cartuyvels, Guy Coppens
1Department of Microbiology, Onze-Lieve-Vrouwziekenhuis, Moorselbaan 164, 9300 Aalst, Belgium. kristien.van.vaerenbergh@olvz-aalst.be
Abstract:
Two chromogenic media for the detection of MRSA were compared: BBL CHROMagar MRSA II (BD) and MRSA ID agar (bioMérieux). 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.
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