Figure 2From: Reduced diversity and increased virulence-gene carriage in intestinal enterobacteria of coeliac children Prevalence percentage of virulence-associated genes in A+B1 commensal (grey bars) and B2+D virulent (black bars) E. coli groups. Data are expressed as percentage (number of positive clones/number of total analysed clones). *Significant difference at P < 0.05 by applying the Fisher's exact test.Back to article page