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Volume 18, Number 6—June 2012

Letter

Human MRSA Isolates with Novel Genetic Homolog, Germany

André Kriegeskorte, Britta Ballhausen, Evgeny A. Idelevich, Robin Köck, Alexander W. Friedrich, Helge Karch, Georg Peters, and Karsten BeckerComments to Author 
Author affiliations: University Hospital Münster, Germany (A. Kriegeskorte, B. Ballhausen, E.A. Idelevich, R. Köck, H. Karch, G. Peters, K. Becker); University Medical Center Groningen, Groningen, the Netherlands (A.W. Friedrich)

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Table

Description of mecALGA251-positive isolates regarding their spa type, ability to grow on selective MRSA media, PBP2a agglutination, mec gene possession, and SCCmec-type*

Isolate no. and origin Characteristics
Year of isolation Specimen spa type Growth on selective MRSA medium† PBP2a agglutination Presence of
mecA mecALGA251 SCCmecXI
Human
1 2010 Nasal swab t843 + + +
2 2010 Wound t843 + + +
3 2010 Wound t843 + + +
4 2010 Nasal swab t843 + + +
5 2011 Nasal swab t843 + + +
6 2004 Sputum t843 + + +
7 2010 Nasal swab t843 + + +
8 2007 Mouth swab t843 + + +
9 2010 Nasal swab t843 + + +
10 2011 Nasal swab t843 + + +
11 2011 Joint aspirate t843 + + +
12 2007 Nasal swab t978 + + +
13 2010 Nasal swab t7189 + + +
14 2009 Nasal swab t1773 + ND + +
Sheep
15 2010 Unknown t1535 + + +
16 2010 Unknown t1535 + + +

*spa, Staphylococcus aureus protein A; MRSA, methicillin-resistant S. aureus; PBP2a, penicillin-binding protein 2a; SCC, staphylococcal cassette chromosome; +, positive; –, negative; ND, not done.
†ChromID MRSA-Plates (bioMérieux, Marcy-l'Étoile, France).

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