[Investigation of antimicrobial resistance to Enterococcus faecium]

We performed a antibiotic resistance study on Enterococcus faecium isolated from intrahospitalary and extrahospitalary samples between 2004 and 2010. Three different samples were studied; urine, blood and wound swabs, considering a strain per patient. We included in the study a global amount of 637 E. faecium isolares. We employed semiautomatic system WIDER I for identification and sensitivity testing. We considered susceptibility and resistance criteria recommended by MENSURA group. We found a susceptibility rate of 48.05% to betalactams, 100% to linezolid, and 99.46% to vancomycin. The resistance to aminoglycosides ranged between 41.41 and 73.55%. We obtained 6 isolates resistant to vancomycin one of them from an extrahospitalary strain and five from intrahospitalary strains. It seems that vancomycin resistance should be controlled.

[Investigation of Enterococcus faecalis antimicrobial resistance]

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.

Multicenter study of incidence of Mycobacterium marinum in humans in Spain

A retrospective survey was carried out on the epidemiological monitoring of the isolation incidence of Mycobacterium marinum in 21 laboratories, in an attempt to gain an insight into the frequency of its isolation in Spain. From 1991 to 1998, 39 cases (22 male and 17 female) of bacteriologically confirmed M. marinum infection were accumulated. The majority of the cases (35) were fish related. The clinical presentation usually suggested sporotrichosis, with the majority of skin eruptions appearing on the hand (32 cases). For treatment, minocycline was recommended as the drug of choice in 12 cases, rifampicin in eight cases and clarithromycin and ethambutol in seven cases.