High Prevalence of Glycopeptide Resistance Genes vanB , vanD , and vanG Not Associated with Enterococci in Human Fecal Flora

Abstract
The presence of Enterococcus -associated vancomycin resistance genes vanA , vanB , vanD , vanE , and vanG in rectal swabs was investigated in two hospitals using PCR. All vanA genes detected were associated with vancomycin-resistant enterococci (VRE), whereas VRE-associated vanB genes were detected in only one hospital (4.7%). However, in both hospitals, high prevalences of vanB (6.2 and 2.3%), vanD (43.8 and 26.7%), and vanG (10.5 and 6.9%) genes not associated with enterococci were found.