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Volume 15, Number 5—May 2009

Research

Cross-Border Dissemination of Methicillin-Resistant Staphylococcus aureus, Euregio Meuse-Rhin Region

Ruud H. DeurenbergComments to Author , Eric Nulens, Havard Valvatne, Silvie Sebastian, Christel Driessen, Jos Craeghs, Els De Brauwer, Bernhard Heising, Yvette J. Kraat, Joachim Riebe, Frans S. Stals, Thera A. Trienekens, Jacques Scheres, Alexander W. Friedrich, Frank H. Van Tiel, Patrick S. Beisser, and Ellen E. Stobberingh
Author affiliations: University Hospital Maastricht, Maastricht, the Netherlands (R.H. Deurenberg, H. Valvatne, S. Sebastian, C. Driessen, J. Scheres, F.H. van Tiel, P.S. Beisser, E.E. Stobberingh); General Hospital Sint-Jan, Brugge, Belgium (E. Nulens); General Hospital Vesalius, Tongeren, Belgium (J. Craeghs); Atrium Medical Center, Heerlen, the Netherlands (E. De Brauwer); General Hospital Düren, Düren, Germany (B. Heising); Orbis Medical and Care Center, Sittard, the Netherlands (Y.J. Kraat); Laboratory Aachen, Aachen, Germany (J. Riebe); Laurentius Hospital, Roermond, the Netherlands (F.S. Stals); VieCuri Medical Center, Venlo, the Netherlands (T.A. Trienekens); University of Münster, Münster, Germany (A.W. Friedrich)

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Table 3

Distribution of MRSA clones in the Euregio Meuse-Rhin region, by country, July 2005–April 2006*

MRSA clone No. isolates
Belgium Germany The Netherlands Total
ST1-MRSA-V 1 1
ST5-MRSA-I 1 1 1 2
ST5-MRSA-II 1 75 30 106
ST5-MRSA-IV 2 17 19
ST8-MRSA-IV 1 2 19 22
ST22-MRSA-IV 4 4
ST30-MRSA-IV 3 3
ST36-MRSA-II 3 3
ST45-MRSA-IV 33 8 25 66
ST80-MRSA-IV 1 2 3
ST89-MRSA-I 1 1
ST89-MRSA-V 1 1
ST398-MRSA-IV 7 7
ST398-MRSA-V 5 5
NT MRSA 7† 1‡ 17
Excluded¶ 1 2 1 4
Total 44 92 121 257

*MRSA, methicillin-resistant Staphylococcus aureus; ST, sequence type; NT, nontypeable. Based on spa and staphylococcus cassette chromosome (SCC) mec typing.
†These strains were classified into clonal complex (CC) 5 and had a nontypeable SCCmec type III element.
‡This strain had a nontypeable SCCmec element belonging to CC30.
§These strains harbored SCCmec type IV and could not be classified into a CC.
spa types with <5 spa repeats.

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