Rev Esp Quimioter 2009:22(3):117-119

Investigation of Enterococcus faecalis antimicrobial resistance

M. M. Casal ,  M. Causse ,  F. Solis ,  F. Rodríguez y M. Casal 


We performed an antibiotic resistance study on Enterococcus faecalis isolated from intrahospitalary and extrahospitalary samples between january 2004 and january 2008. Three different samples were studied; urine, blood and wound swabs, considering a strain per patient. We included in the study a global amount of 3,641 Enterococcus faecalis isolations from clinical samples received at Hospital Universitario Reina Sofía microbiology service in Córdoba (Spain). We employed semiautomatic system WIDER I (Soria Melguizo) for identification and sensibility testing. We considered sensibility and resistance criteria recommended by MENSURA group. We found a sensitivity rate of 98.04% to betalactamics.The highest resistance rates were obtained with aminoglycosides, between 33.82% and 48.01%. Linezolid and Vancomycin sensitivity was 100%. It seems that vancomycin resistance is not a worrying issue today, but it should be controlled.


Key words: Enterococcus faecalis. Resistance. Antimicrobial agents.

Rev Esp Quimioter 2009:22(3):117-119   [pdf]