<prompt> EC O157:H7, shiga toxin-producing strain of E. coli can be distinguished from other strains of E.coli by using the following medium:Hektoen agarSorbitolBlood agarLJ medium  <response>: Shiga toxin-producing E coli STEC are named for the cytotoxic toxins they produce. There are at least two antigenic forms of the toxin referred to as Shiga-like toxin 1 and Shiga-like toxin 2. STEC has been associated with, Hemorrhagic colitis Severe diarrhea Hemolytic uremic syndrome resulting acute renal failure Microangiopathic hemolytic anemia Thrombocytopenia Of the E coli serotypes that produce Shiga toxin, O157:H7 is the most common. STEC O157:H7 does not use sorbitol, unlike most other E coli, and is negative clear colonies on sorbitol MacConkey agar sorbitol is used instead of lactose; which serves as an impoant criterion that distinguishes it from other strains of E. coli. O157:H7 strains also are negative on MUG tests. Many of the non-O157 serotypes may be sorbitol positive when grown in culture. Ref: Brooks G.F. 2013. Chapter 15. Enteric Gram-Negative Rods Enterobacteriaceae. In G.F. Brooks Ed, Jawetz, Melnick, Adelbergs Medical Microbiology, 26e. 