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Journal of Clinical Microbiology, July 2006, p. 2533-2540, Vol. 44, No. 7
0095-1137/06/$08.00+0 doi:10.1128/JCM.00420-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.
Assignment of Staphylococcus Isolates to Groups by spa Typing, SmaI Macrorestriction Analysis, and Multilocus Sequence Typing
B. Strommenger,1*
C. Kettlitz,1
T. Weniger,2
D. Harmsen,2
A. W. Friedrich,3 and
W. Witte1
Robert Koch Institute, Wernigerode Branch, Wernigerode, Germany,1
Department of Periodontology, University Hospital Münster, Münster, Germany,2
Department of Hygiene, University Hospital Münster, Münster, Germany3
Received 27 February 2006/
Returned for modification 7 April 2006/
Accepted 25 April 2006
The implementation of the new clustering algorithm Based Upon Repeat Pattern (BURP) into the Ridom StaphType software tool enables clustering based on spa typing data for Staphylococcus aureus. We compared clustering results obtained by spa typing/BURP to those obtained by currently well-established methods, i.e., SmaI macrorestriction analysis and multilocus sequence typing/eBURST. A total of 99 clinical S. aureus strains, including MRSA and representing major clonal lineages associated with important kinds of infections which have been prevalent in Germany and Central Europe during the last 10 years, were used for comparison. SmaI macrorestriction analysis revealed the highest discriminatory power, and clustering results for all three methods resulted in concordance values ranging from 96.8% between the two sequence-based methods to 93.4% between spa typing/BURP and SmaI macrorestriction/cluster analysis. The results of this study indicate that spa typing, together with BURP clustering, is a useful tool in S. aureus epidemiology, especially because of ease of use and the advantages of unambiguous sequence analysis as well as reproducibility and exchange of typing data.
* Corresponding author. Mailing address: Wernigerode Branch, Robert Koch Institute, Burgstr. 37, D-38855 Wernigerode, Germany. Phone: 0049/3943/679 260. Fax: 0049/3943/679 317. E-mail: strommengerb{at}rki.de.
Journal of Clinical Microbiology, July 2006, p. 2533-2540, Vol. 44, No. 7
0095-1137/06/$08.00+0 doi:10.1128/JCM.00420-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.
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Copyright © 2006 by the American Society for Microbiology. All rights reserved.