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Journal of Clinical Microbiology, February 2004, p. 822-824, Vol. 42, No. 2
0095-1137/04/$08.00+0 DOI: 10.1128/JCM.42.2.822-824.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
Molecular Characterization of Resistance to Mupirocin in Methicillin-Susceptible and -Resistant Isolates of Staphylococcus aureus from Nasal Samples
Fernando Chaves,* Jesus García-Martínez, Sonia de Miguel, and Joaquín R. Otero
Servicio de Microbiología, Hospital Universitario Doce de Octubre, Avenida de Cordoba sn, 28041 Madrid, Spain
Received 13 May 2003/
Returned for modification 7 July 2003/
Accepted 8 November 2003
A total of 15 of 101 (14.8%) nasal methicillin-resistant Staphylococcus aureus (MRSA) isolates exhibited mupirocin resistance (Mupr) compared with 1 of 154 (0.6%) methicillin-susceptible Staphylococcus aureus isolates. A total of 14 (93%) isolates exhibiting high-level Mupr belonged to a single clone. Horizontal plasmid transfer and transmission of Mupr strains contribute to a high incidence of Mupr MRSA at our institution.
* Corresponding author. Mailing address: Servicio de Microbiología, Hospital Universitario Doce de Octubre, Avenida de Cordoba sn, Madrid 28041, Spain. Phone: (34) 91-3908239. Fax: (34) 91-5652765. E-mail:
fchaves.hdoc{at}salud.madrid.org.
Journal of Clinical Microbiology, February 2004, p. 822-824, Vol. 42, No. 2
0095-1137/04/$08.00+0 DOI: 10.1128/JCM.42.2.822-824.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
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