This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
The causative organism of hemolytic uremic syndrome is 
Select and explain. 
A. ETEC, B. Shigella, C. Salmonella, D. Pseudomonas
B: Shigella
Answer: B: Shigella 
Explanation: The hemolytic uremic syndrome may occur as a complication in severe cases due to shigella. EHEC can give rise to diarrhea to fatal hemmorhagic colitis and hemmorhagic uraemic syndrome paicularly in young children and the elderly. Ref: Textbook of microbiology; Ananthanarayan and paniker's; 10th Edition; pg: 293