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Journal of Clinical Microbiology, April 2005, p. 1925-1927, Vol. 43, No. 4
0095-1137/05/$08.00+0 doi:10.1128/JCM.43.4.1925-1927.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.
Performance of CHROMagar MRSA Medium for Detection of Methicillin-Resistant Staphylococcus aureus
Bram Diederen,1*
Inge van Duijn,2
Alex van Belkum,3
Piet Willemse,2
Peter van Keulen,2 and
Jan Kluytmans2
Laboratory for Microbiology and Infection Control, Amphia Hospital, Breda,2
Laboratory of Medical Microbiology, St. Elisabeth Hospital, Tilburg,1
Department of Medical Microbiology and Infectious Diseases, Erasmus MC, Rotterdam, The Netherlands3
Received 30 September 2004/
Returned for modification 20 November 2004/
Accepted 25 November 2004
CHROMagar MRSA was evaluated for its ability to identify methicillin-resistant Staphylococcus aureus (MRSA). A well-defined collection consisting of 216 MRSA strains and 241 methicillin-susceptible Staphylococcus aureus isolates was used. The sensitivity of CHROMagar MRSA after 24 h of incubation was 95.4%, increasing to 100% after 48 h. The specificity was already 100% after 24 h.
* Corresponding author. Mailing address: Laboratory of Medical Microbiology, St. Elisabeth Hospital, P.O. Box 747, 5000 AS Tilburg, The Netherlands. Phone: 31 13 539 2655. Fax: 31 13 544 1264. E-mail: b.diederen{at}elisabeth.nl.
Journal of Clinical Microbiology, April 2005, p. 1925-1927, Vol. 43, No. 4
0095-1137/05/$08.00+0 doi:10.1128/JCM.43.4.1925-1927.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.
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Copyright © 2005 by the American Society for Microbiology. All rights reserved.