This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enterobecteriaceae, Subject name: Microbiology
HUS is caused by: 
Select and explain. 
A. EIEC, B. EPEC, C. ETEC, D. EHEC
D: EHEC
Answer: D: EHEC 
Explanation: Ans. (d) EH ECRef: Ananthanaryan 8,h Ed. / 276 & 277* Hemoltic uremic syndrome (HUS) is a type 3 hypersensitivity reaction associated with small vessel vasculitis.* Organisms causing HUS is E.Coli (particularly EHEC) and shigella dysentriae.