Citrobacter freundii, Hafnia alvei, Raoultella ornithinolytica, and Enterobacter spp. revealed similar cultural morphology of EHEC on TC-SMAC and L-EMB media, and the correct identification was unraveled by application of 16S rDNA PCR and partial sequencing (Figure-1). The results of the phylogenetic analysis showed that the strains 3301.2, 6412, 6413, 7401, 9405, 6306, 10426 and 3410.2 are closely related among them and with respect to E. coli O157:H7 FRIK944 strain with more than 99% similarity values. Meanwhile, strains 3301.1 and 6308 are related to E. coli O157:H7 Sakai strain (Figure-2 and Table-2).