Table 1.

E. coli strains used in this study

StrainSerotypeeae geneaStx typeSourceRefer- ence
86-24O157:H7+Stx2Phil Tarr15
86-24eaeΔ10bO157:H7Stx215
86-24eaeΔ10 (pEB310)cO157:H7+Stx215
B2F1O91:H21Stx2dMohamed Karmali9, 17
123O43:H2818
  • a Presence (+) or absence (−) ofeae gene.

  • b In-frame deletion in eae gene in strain 86-24.

  • c eae mutant complemented with theeae gene.