Counts of Escherichia coli and non-Escherichia coli Enterobacterales (NECE), enumerated onto HiCrome Coliform Agar (HCCA) plates. (a) Percentage of colonies attributed to E. coli (blue shades) and NECE (pink shades) in the feces of 20 subjects. For each subject, different shades indicate different biotypes according to enterobacterial repetitive intergenic consensus-PCR (ERIC-PCR) and random amplification of polymorphic DNA-PCR (RAPD-PCR) fingerprinting. The total count of Enterobacterales (E. coli + NECE) is reported in the top margin. (b) Distribution of the percentage of NECE colonies. The median (dashed line), the 25th and 75th percentiles (colored box), the 10th and 90th percentiles (whiskers), and outliers (*) are indicated.