Skip to main content

Table 1 Characteristics E. coli CTXR ST131 O25:H4/H30-Rx strains.

From: Adherent/invasive Escherichia coli (AIEC) isolates from asymptomatic people: new E. coli ST131 O25:H4/H30-Rx virotypes

Strain β-lactamic Resistance profile Non-β-lactamic Resistance profile Genetic resistance determinant Phylogenetic group ST/ST complex AIEC genesa Virulence genesa
C7223 AMP, AMC, CTX, CAZ NA, CIP, S, T, TE, SXT blaCTX-M15, blaOXA-1, aac(6′)-Ib-cr, tet(A) B2 4225/131 insA, insB, intI1 fimH, iha, iucD, satA, papA, papGII
C7225 AMP, AMC, CTX, CAZ, FEP NA, CIP, GM, AK, T, TE, blaCTX-M15, blaOXA-1, aac(6′)-Ib-cr, tet(A), aac(3′)-II B2 131/131 insA, insB, intI1 fimH, iha, iucD, satA, papA, papGII
C7226 AMP, AMC, CTX, CAZ, FEP NA, CIP, GM, AK, T, TE blaCTX-M15, blaOXA-1, aac(6′)-Ib-cr, aac(3′)-II B2 131/131 insA, insB, intI1 fimH, iha, iucD, cnfI, iroN, papA, papGII
C7230 AMP, CTX, CAZ, FEP, IMP NA, CIP, S, GM, T, TE blaCTX-M15, tet(A), B2 131/131 insA, insB, intI1 fimH, iha, iucD, cnfI, iroN, papA, papGII
  1. CTXR Resistant to cefotaxime, O25:H4/H30-Rx serotype/fimH variant-resistance to fluoroquinolones simultaneously with ESBL CTX-M-15 production, AMP ampicillin, AMC amoxicillin/clavulanic acid, CTX cefotaxime, CAZ ceftazidime, FEP cefepime, IMP imipenem, NA nalidixic acid, CIP ciprofloxacin, AK amikacin, GM gentamicin, T tobramicin, TE tetracycline, SXT sulfamethoxazole trimetoprim, S streptomycin
  2. aThis study