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. 2006 Sep;50(9):3162-5.
doi: 10.1128/AAC.00269-06.

Increase of the M phenotype among erythromycin-resistant Streptococcus pneumoniae isolates from Spain related to the serotype 14 variant of the Spain9V-3 clone

C Ardanuy  1 , A Fenoll, S Berrón, L Calatayud, J Liñares
Affiliations

Increase of the M phenotype among erythromycin-resistant Streptococcus pneumoniae isolates from Spain related to the serotype 14 variant of the Spain9V-3 clone

C Ardanuy et al. Antimicrob Agents Chemother. 2006 Sep.

Abstract

Between 1998 and 2003 the rate of erythromycin resistance among pneumococci in Spain was 34.4%. Although the MLS(B) phenotype was prevalent (94.7%), the rate of the M phenotype increased from 3.3% to 8.9% (P < 0.01). Clonal dissemination of mef(E)-carrying strains of serotype 14 variant of the Spain(9V)-3 clone was the major contributor to this increase.

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References

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