Fig. 6From: Escherichia cryptic clade I is an emerging source of human intestinal pathogensStx production levels of C-I strains. Stx concentrations of five stx2a- and two stx2g-positive C-I strains after mitomycin treatment are shown. The STEC strain Sakai carrying stx2a is also included for comparison. The mean values of three measurements are presented. Error bars represent standard errorsBack to article page