Patent ID: 8318452

Claim:
A solid culture medium for the detection and/or the discrimination of groups of glycopeptide-resistant species of enterococci: E. faecalis and/or E. faecium , belonging to the VanA/VanB groups of resistance to glycopeptides; and E. gallinarum/E. casseliflavus , belonging to the VanC group of resistance to glycopeptides, wherein said medium comprises, in a culture medium selective for enterococci, at least one chromogenic substrate for α-glucosidase and at least one activator of a colored reaction, chosen from the group consisting of methyl-α-glucoside, polymers of methyl-α-glucoside, glucosyl-α-glucoside and polymers of glucosyl-α-glucoside; wherein reaction of said substrate with said α-glucosidase results in a color that allows for detection and/or the discrimination of E. faecalis and/or E. faecium , belonging to the VanA/VanB groups of resistance to glycopeptides and E. gallinarum/E. casseliflavus , belonging to the VanC group of resistance to glycopeptides.