Abstract
Enteropathogenic Escherichia coli (EPEC) are composed of two subgroups: typical EPEC (tEPEC) and atypical EPEC (aEPEC), and this classification is based on the occurrence of the EAF plasmid (EPEC adherence factor) in tEPEC and its absence in aEPEC. For several decades, tEPEC were the main agents of childhood diarrhea in Brazil, but their frequency has decreased while aEPEC have been found…