TABLE 3.

Representative enterococcal isolates: origins, antimicrobial MICs, and resistance genes

IsolateSite-dateaMIC (μg/ml)bResistance gene(s)cerm(B)-aadE-sat4-aphA-3 gene cluster
VANPENERYTETDOXMINCHLRIFvantetermAminoglycosides
E. faecalis 5744Urine-4/222>8>16816160.5tet(M)erm(B)aac(6′)-aph(2")
E. faecalis 5743Rectum-4/222>8>164881tet(M)erm(B)aadE, aphA-3
E. faecalis 5742Rectum-4/0222>8>164881vanAtet(M)erm(B)aac(6′)-aph(2"), aadE, aphA-3+
E. faecium 2547Neph. tube-4/15128128>8>1616328>4vanAtet(L), tet(M), tet(S), tet(U)erm(B), msrCaac(6′)-aph(2"), aac(6′)-Ii, aadE, aphA-3+
E. faecium 5749Urine-4/02128128>8>168164>4tet(L), tet(M), tet(S), tet(U)erm(B), msrCaac(6′)-aph(2"), aac(6′)-Ii, aadE, aphA-3+
E. faecium 5750Urine (cath)-4/20256256>8>16163284vanAtet(L), tet(M), tet(U)erm(B), msrCaac(6′)-aph(2"), aac(6′)-Ii, aadE
E. faecium 5751Urine (cath.)-4/20256256>8>161616≤2>4vanAtet(L), tet(M), tet(S), tet(U)erm(B), msrCaac(6′)-Ii, aadE, aphA-3+
E. faecium 5752Urine (neph.)-4/20128128>8>1616328>4vanAtet(L), tet(M), tet(S), tet(U)erm(B), msrCaac(6′)-aph(2"), aac(6′)-Ii, aadE, aphA-3+
E. faecium 5753Rectum-4/20256256>8>168164>4vanAtet(L), tet(M), tet(S), tet(U)erm(B), msrCaac(6′)-aph(2"), aac(6′)-Ii, aadE, aphA-3+
E. faecalis 5745Rectum-4/2022>8>164881vanAtet(M)erm(B)aac(6′)-aph(2"), aadE, aphA-3+
E. faecalis 5746Rectum-4/2022>8≤0.5≤0.250.12162erm(B)aac(6′)-aph(2"), aadE, aphA-3
  • a Date is shown as month/day. Neph., nephrostomy; cath., catheter.

  • b CHL, chloramphenicol; DOX, doxycycline; ERY, erythromycin; MIN, minocycline; PEN, penicillin; RIF, rifampin; TET, tetracycline; VAN, vancomycin.

  • c —, gene not detected by PCR.