Table 1

Characteristics of isolates obtained through mother and newborn samples in this study

E. coli ST131 isolatePatientSpecimen sourceGene(s) encoding beta-lactamasesAntimicrobial, nonsusceptibility associated (intermediate or resistant)Phylogenetic groupST131 statusK1 statusGene(s) encoding virulence factors
22328MotherVaginal swabblaCTX-M-14, blaTEM-1SXT, OFLO, GENDNDafyuA, papC
22873MotherVaginal swabblaCTX-M-2, blaTEM-1SXTANDhra, fyuA, papC, iucC, iroN
23542NewbornGastricblaCTX-M-14AND+fyuA, papC, iucC, papGII
23805NewbornGastricblaTEM-52B2+fyuA, papC, iucC, papGII
23887NewbornGastricblaCTX-M-14, blaTEM-1SXT, OFLOAND+fyuA, papC, iucC, papGIII
24213NewbornGastricblaCTX-M-3DNDfyuA, papC, iucC, papGII
24607MotherVaginal swabblaCTX-M-1SXT, OFLOANDhra, iucC
24949NewbornEarblaCTX-M-1DNDfyuA, iucC, iroN
24952MotherVaginalblaTEM-52OFLOANDNo virulence factors
25195NewbornGastricblaCTX-M-14B1NDsfa, iroN
25531MotherVaginal swabblaCTX-M-1, blaTEM-1B1NDhra, fyuA, hly, papC, iucC
25556MotherVaginal swabblaCTX-M-14, blaTEM-1SXT, OFLODNDfyuA
25798NewbornGastricblaCTX-M-14DNDfyuA, iucC
25834MotherVaginal swabblaCTX-M-1DNDiucC, iroN
25930NewbornGastricblaCTX-M-14, blaTEM-1SXTB1NDfyuA, iucC, iroN
25982NewbornGastricblaCTX-M-14AND+fyuA, hly, papC, iucC
26240NewbornGastricblaTEM-52B2fyuA, iucC, ibeA, iroN
26601NewbornGastricblaCTX-M-15, blaOXA-1SXT, OFLO, GENB2+fyuA, iucC
26777MotherVaginal swabblaTEM-52SXTANDfyuA
27048MotherVaginal swabblaCTX-M-1, blaTEM-1SXTANDhra, fyuA, papC, iucC, iroN
27139NewbornGastricblaCTX-M-14SXT, OFLOAND+fyuA, papC, iucC, papGIII
27144MotherVaginal swabblaCTX-M-2, blaTEM-1SXTB2++fyuA, iucC, ibeA, iroN
27487NewbornGastricblaCTX-M-15SXT, OFLOB2+fyuA, iucC
27915NewbornGastricblaCTX-M-15SXT, OFLO, GENANDNo virulence factors
27959NewbornGastricblaCTX-M-2, blaTEM-1GENB1NDiroN
28130NewbornEarblaCTX-M-15SXTANDhra, fyuA, papC
28322MotherVaginal swabblaCTX-M-1B2+hra, fyuA, hly, sfa, papC, papGIII, cnf1, iroN
28678MotherVaginal swabblaCTX-M-15SXT, OFLOB2+fyuA, iucC
28936NewbornGastricblaCTX-M-1SXTDNDhra
28949MotherVaginal swabblaCTX-M-1B1NDiroN
29047NewbornGastricblaSHV-12DNDNo virulence factors
29081NewbornGastricblaCTX-M-15SXT, GENB2fyuA
29191MotherVaginal swabblaSHV-12, blaTEM-1SXTANDiroN
29228NewbornGastricblaCTX-M-1, blaTEM-1DNDfyuA, iroN
29229NewbornGastricblaCTX-M-1, blaTEM-1DNDfyuA, iroN
29245NewbornGastricblaCTX-M-14B1NDfyuA, papGII
29273MotherVaginal swabblaCTX-M-14B1NDfyuA, papGII
29369NewbornGastricblaCTX-M-15, blaOXA-1SXT, OFLO, GENB2+hra, fyuA, hly, papC, iucC, papGII, cnf1
29386MotherVaginalblaCTX-M-57ANDNo virulence factors
29512MotherVaginal swabblaCTX-M-15, blaOXA-1SXT, OFLOANDfyuA, iucC
29560MotherVaginal swabblaSHV-12DNDfyuA, iucC, iroN
29724NewbornGastricblaCTX-M-14SXT, OFLO, GENDND+fyuA, papC, iucC, papGII
29749NewbornGastricblaCTX-M-14, blaTEM-1SXT, GENDND+fyuA, papC, iucC, papGII
29752MotherVaginal swabblaCTX-M-14, blaTEM-1B2+fyuA, iucC, ibeA, iroN
29905NewbornGastricblaCTX-M-14, blaTEM-1SXTDNDhra, fyuA, hly, papC, iucC, papGII
30064MotherVaginal swabblaCTX-M-1DNDfyuA, papC, iucC, papGII
30151NewbornGastricblaCTX-M-15, blaOXA-1OFLO, GENB2+hra, fyuA, hly, papC, iucC, papGII, cnf1
30204NewbornGastricblaSHV-12B1NDNo virulence factors
30363MotherVaginal swabblaCTX-M-15, blaTEM-1SXT, GENB2fyuA, iucC
30525NewbornGastricblaCTX-M-27, blaTEM-1SXT, OFLO, GENB21+fyuA, hly, papC, iucC, papGII, iroN
30546MotherVaginal swabblaCTX-M-1, blaTEM-1SXTANDfyuA, iucC, iroN
30576NewbornGastricblaCTX-M-14B2hra, fyuA, sfa, iucC, iroN
30661MotherVaginal swabblaCTX-M-1AND+hra
30679MotherVaginal swabblaCTX-M-15, blaTEM-1SXT, OFLO, GENDNDfyuA, papC, iucC, papGII
30705MotherVaginal swabblaSHV-2aOFLOANDiucC, iroN
30720MotherVaginal swabblaCTX-M-1OFLOANDhra, iucC, iroN
31059NewbornGastricblaSHV-2aANDhra, fyuA, iucC, iroN
31085NewbornGastricblaCTX-M-14SXT, OFLODND+fyuA, papC, iucC, papGII
31096MotherVaginal swabblaCTX-M-1SXTDNDiucC, iroN
31254MotherVaginal swabblaCTX-M-1, blaTEM-1ANDiucC, iroN
31289NewbornGastricblaCTX-M-1, blaTEM-1SXTANDhra, iucC
31342NewbornGastricblaCTX-M-15, blaOXA-1SXT, OFLOB2+hra, fyuA, papC, iucC, papGII
31385NewbornGastricblaCTX-M-14ANDNo virulence factors
31776NewbornGastricblaCTX-M-14OFLODNDfyuA
  • a ND, not determined.