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 Becker
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).
