RT Journal Article SR Electronic T1 Colonial variation in vancomycin resistant Enterococcus faecium. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 474 OP 475 DO 10.1136/jcp.46.5.474 VO 46 IS 5 A1 L W Baillie A1 J J Wade A1 M W Casewell YR 1993 UL http://jcp.bmj.com/content/46/5/474.abstract AB Vancomycin resistant enterococci are increasingly being isolated from inpatients. This report describes the colonial variation present in most isolates of vancomycin resistant Enterococcus faecium obtained at this hospital. Colonial variants within the same culture were indistinguishable by antimicrobial susceptibility, biochemical reactions, and ribotyping. Failure to appreciate this colonial variation will lead to pure cultures being regarded as contaminated or mixed.