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Antimicrobial Agents and Chemotherapy, April 2004, p. 1369-1373, Vol. 48, No. 4
0066-4804/04/$08.00+0 DOI: 10.1128/AAC.48.4.1369-1373.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
Clonal Relatedness of Erythromycin-Resistant Streptococcus pyogenes Isolates in Germany
Ralf R. Reinert,1* Rudolf Lütticken,1 Joyce A. Sutcliffe,2 Amelia Tait-Kamradt,3 Murat Y. Cil,1 Holger M. Schorn,1 André Bryskier,4 and Adnan Al-Lahham1
Institute for Medical Microbiology, National Reference Center for Streptococci, University Hospital, D-52057 Aachen, Germany,1
Rib-X Pharmaceuticals, New Haven,2
Pfizer Central Research and Development, Groton, Connecticut,3
Aventis Pharma, Hoechst Marion Roussel, Romainville, France4
Received 25 July 2003/
Returned for modification 8 November 2003/
Accepted 6 January 2004
In a nationwide study in Germany, a total of 381 Streptococcus pyogenes were collected. Erythromycin A-resistant strains were characterized for the underlying resistance genotype, showing 55.6% had the efflux type mef(A), 31.5% had erm(A), and 13.0% had erm(B). A total of 23 different multilocus sequence types were observed.
* Corresponding author. Mailing address: Institute for Medical Microbiology, National Reference Center for Streptococci, University Hospital, Pauwelsstrasse 30, D-52057 Aachen, Germany. Phone: 49 241 8089787. Fax: 49 241 8082483. E-mail:
Reinert{at}rwth-aachen.de.
Antimicrobial Agents and Chemotherapy, April 2004, p. 1369-1373, Vol. 48, No. 4
0066-4804/04/$08.00+0 DOI: 10.1128/AAC.48.4.1369-1373.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
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