Enteropathogenic (EPEC) and Shigatoxigenic Escherichia coli (STEC) in broiler chickens and derived products at different retail stores

► We detected Shiga toxin and intimin encoding genes in cloacae from chickens and in chicken products. ► The number of positive samples for each gene differed among chicken products and types of shops. ► STEC detection in hamburgers could indicate cross contamination during handling at butcheries. ► EPEC contamination may result from contamination at slaughter as it was detected in cloacal samples.