Culture media used for diagnosis of EHEC O157:H7 is-: (A) O culture, (B) Sorbitol MacConkey media, (C) XLD agar, (D) Deoxycholate media
Answer is B. EHEC can be differentiated from other E.coli as it is sorbitol non fermenter, hence it produces colorless colony on Sorbitol MacConkey media whereas others can ferment sorbitol producing pink colony.