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Antimicrobial Agents and Chemotherapy, February 2005, p. 827-829, Vol. 49, No. 2
0066-4804/05/$08.00+0     doi:10.1128/AAC.49.2.827-829.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Distribution of Subclasses mefA and mefE of the mefA Gene among Clinical Isolates of Macrolide-Resistant (M-Phenotype) Streptococcus pneumoniae, Viridans Group Streptococci, and Streptococcus pyogenes

Carmen Ardanuy,1* Fe Tubau,1 Josefina Liñares,1,2 María Angeles Domínguez,1,2 Román Pallarés,2,3 Rogelio Martín,1,2 and The Spanish Pneumococcal Infection Study Network (G03/103){dagger}

Servicio de Microbiología,1 Servicio de Enfermedades Infecciosas, IDIBELL, Hospital Universitari de Bellvitge,3 Universidad de Barcelona, Barcelona, Spain2

Received 29 July 2004/ Returned for modification 12 September 2004/ Accepted 7 October 2004

The distribution of subclasses mefA and mefE of the mefA gene among 116 M-phenotype streptococci was as follows: pneumococci (38 strains had mefE and 4 mefA), viridans streptococci (49 mefE and 1 mefA), and Streptococcus pyogenes (24 mefA). Spain9V-3-14 and England14-9 clones of serotype 14 were dominant among pneumococci.

* Corresponding author. Mailing address: Servicio de Microbiologia. Hospital de Bellvitge, Feixa Llarga s/n, 08907 L'Hospitalet de Llobregat, Barcelona, Spain. Phone: 34 93 260 79 30. Fax: 34 93 260 75 47. E-mail: c.ardanuy{at}csub.scs.es.

{dagger} Contributing members of the The Spanish Pneumococcal Infection Study Network (G03/103) are listed in Acknowledgments.

Antimicrobial Agents and Chemotherapy, February 2005, p. 827-829, Vol. 49, No. 2
0066-4804/05/$08.00+0     doi:10.1128/AAC.49.2.827-829.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Calatayud, L., Ardanuy, C., Cercenado, E., Fenoll, A., Bouza, E., Pallares, R., Martin, R., Linares, J. (2007). Serotypes, Clones, and Mechanisms of Resistance of Erythromycin-Resistant Streptococcus pneumoniae Isolates Collected in Spain. Antimicrob. Agents Chemother. 51: 3240-3246 [Abstract] [Full Text]  
  • Ardanuy, C., Fenoll, A., Berron, S., Calatayud, L., Linares, J., the Spanish Pneumococcal Infection Study Network, (2006). Increase of the M Phenotype among Erythromycin-Resistant Streptococcus pneumoniae Isolates from Spain Related to the Serotype 14 Variant of the Spain9V-3 Clone.. Antimicrob. Agents Chemother. 50: 3162-3165 [Abstract] [Full Text]  
  • Cochetti, I., Vecchi, M., Mingoia, M., Tili, E., Catania, M. R., Manzin, A., Varaldo, P. E., Montanari, M. P. (2005). Molecular Characterization of Pneumococci with Efflux-Mediated Erythromycin Resistance and Identification of a Novel mef Gene Subclass, mef(I). Antimicrob. Agents Chemother. 49: 4999-5006 [Abstract] [Full Text]  
  • Poole, K. (2005). Efflux-mediated antimicrobial resistance. J Antimicrob Chemother 56: 20-51 [Abstract] [Full Text]  


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