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[Streptococcus agalactiae highly resistant to fluoroquinolones]
Elisenda Miró1, Montserrat Rebollo, Alba Rivera
1Servicio de Microbiología, Hospital de la Santa Creu i Sant Pau, Barcelona, España.
Background:
Streptococcus agalactiae remains susceptible to penicillin; nevertheless, an increase in the resistance to other antimicrobial families, such as macrolides and more rarely fluoroquinolones, has been described.
Methods And Results:
From 2003 to 2004, two fluoroquinolone-resistant S. agalactiae strains were detected. The strains presented one mutation in parC (Ser79 --> Phe) and an additional mutation in gyrA (Glu85 --> Ala or Glu85 --> Lys).
Conclusion:
This study describes the first S. agalactiae strains highly resistant to fluoroquinolones in Spain.
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