Open AccessPerformance of a New Chromogenic Medium, BBL CHROMagar MRSA II (BD), for Detection of Methicillin-Resistant Staphylococcus aureus in Screening Samples
Author(s) -
Kristien Van Vaerenbergh,
Reinoud Cartuyvels,
G. Coppens,
Johan Frans,
AnneMarie Van den Abeele,
H. De Beenhouwer
Publication year - 2010
Publication title -
journal of clinical microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.349
H-Index - 255
eISSN - 1070-633X
pISSN - 0095-1137
DOI - 10.1128/jcm.02103-09
Subject(s) - chromogenic , microbiology and biotechnology , staphylococcus aureus , agar , methicillin resistant staphylococcus aureus , incubation , micrococcaceae , medicine , chemistry , bacteria , biology , chromatography , antibacterial agent , antibiotics , biochemistry , genetics
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.