Abstract
Atypical enteropathogenic Escherichia coli (aEPEC) is an important etiological agent of infantile diarrhea worldwide, including Brazil. The central mechanism of aEPEC pathogenesis is the ability to cause attaching-effacing lesions on intestinal epithelium, a property triggered by proteins encoded on a pathogenicity island called locus of enterocyte effacement. However, some strains produc…