TABLE 1.

Origins and epidemiological features of the clinical strains investigateda

StrainCollection date (yr)SourceOriginDHA-1 plasmid transferTEM typeSHV typePFGE typeDHA-1 plasmid fingerprintorf513-specific PCR result
Salmonella serovar Enteritidis KF921992StoolDhahran Saudi ArabiaTc E. coli HB101(pSAL-1)NDND+
K. pneumoniae Kp7601998BloodRothschild Hospital, ParisTc E. coli C600(pKp760)IND+
K. pneumoniae TN586471999UrineTenon Hospital, ParisTc E. coli J53(pTN58647)TEM-1SHV-2aA1a
K. pneumoniae RDDHA1999UrineR. Debré Hospital, ParisTc E. coli C600(pRDDHA)SHV-2GND+
K. pneumoniae RBDHA2002UrineR. Ballanger Hospital, Parisian regionTc E. coli J53(pRBDHA)H2+
K. pneumoniae JDDHA2002UrineJoffre-Dupuytren Hospital, Parisian regionTc E. coli J53(pJDDHA)TEM-1SHV-2aA1a
K. oxytoca MPDHA2002UrineMassy-Palaiseau Hospital, Parisian regionNoTEM-1NDNT+
K. pneumoniae TN600132002UrineTenon Hospital, ParisTc E. coli C600(pTN60013)TEM-1SHV-2aA1c
K. pneumoniae STA1DHA2003MesenterySt. Antoine Hospital, ParisEp E. coli DH10B(pSTA1DHA)B1b
K. pneumoniae TN260332003CatheterTenon Hospital, ParisNoDNT
K. pneumoniae STA2DHA2003UrineSt. Antoine Hospital, ParisEp E. coli DH10B(pSTA2DHA)C1a
K. pneumoniae IGR1DHA2003UrineInstitut Gustave Roussy, Parisian regionTc E. coli J53(pIGR1DHA)E1a
K. pneumoniae IGR2DHA2003StoolInstitut Gustave Roussy, Parisian regionTc E. coli J53(pIGR2DHA)F1a
  • a Abbreviations: Tc, transconjugant; Ep, transformant; −, negative; NT, no transfer; ND, not determined.