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
Which organism causes haemolytic uremic syndrome: 
Select and explain. 
A. Neisseria, B. Salmonella, C. Pseudomonas, D. E. Coli
D: E. Coli
Answer: D: E. Coli 
Explanation: Ans. (d) E. ColiRef: Microbiology by Ananthanarayan and Paniker 8th ed. /276-77* 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.