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Journal of Clinical Microbiology, December 2006, p. 4561-4563, Vol. 44, No. 12
0095-1137/06/$08.00+0     doi:10.1128/JCM.01763-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

Evaluation of a New Chromogenic Medium, MRSA Select, for Detection of Methicillin-Resistant Staphylococcus aureus{triangledown}

Lisa Louie,1* Deirdre Soares,1 Helen Meaney,1 Mary Vearncombe,1,2 and Andrew E. Simor1,2

Sunnybrook Health Sciences Centre,1 University of Toronto, Toronto, Ontario, Canada2

Received 25 August 2006/ Returned for modification 4 October 2006/ Accepted 5 October 2006

We compared MRSA Select to mannitol-salt agar with 8 µg/ml cefoxitin for the detection of methicillin-resistant Staphylococcus aureus (MRSA) from 6,199 clinical samples submitted for MRSA screening. The sensitivities and specificities of MRSA Select and mannitol-salt agar with cefoxitin were 98% and 92% versus 90% and 78%, respectively (P < 0.0001). Most (96%) MRSA were detected after overnight incubation using MRSA Select.

* Corresponding author. Mailing address: Department of Microbiology, Sunnybrook Health Sciences Centre, B121-2075 Bayview Ave., Toronto, Ontario, Canada M4N 3M5. Phone: (416) 480-4242. Fax: (416) 480-6845. E-mail: lisa.louie{at}sunnybrook.ca.

{triangledown} Published ahead of print on 18 October 2006.

Journal of Clinical Microbiology, December 2006, p. 4561-4563, Vol. 44, No. 12
0095-1137/06/$08.00+0     doi:10.1128/JCM.01763-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



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