Authors: M Mateo J R Maestre L Aguilar M J Giménez J J Granizo J Prieto
Publish Date: 2007/12/18
Volume: 27, Issue: 4, Pages: 311-314
Abstract
Biofilm production was assessed in 52 Staphylococcus epidermidis isolates from the catheters of 52 patients with catheterrelated bloodstream infections CRBSI and compared with 14 isolates from the skin of healthy volunteers by spectrophotometry The isolates were classified as non G1 weak G2 or strong G3 slime producers based on optical density and as producers and nonproducers based on the results of the Congo red agar test Differences p = 0012 in the proportion of G1 G2 and G3 among the isolates were found between catheter and healthy skin strains there was a higher percentage of G1 types among the healthy skin strains 357 vs 115 p = 0046 and a higher percentage of G3 types among the catheter isolates 442 vs 0 p = 0001 No significant differences were found with the Congo red agar test G3 is a phenotypic marker for CRBSI
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