This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli), Subject name: Microbiology
Verocytotoxin has been isolated in individual suffering from Hemolytic uraemic syndrome in their 
Select and explain. 
A. Blood, B. Tissues, C. Feces, D. Saliva
C: Feces
Answer: C: Feces 
Explanation: Verocytotoxin or SHIGA LIKE TOXIN is produced by Enterohemorrhagic E coli which invades vascular endothelial cell and causes diarrhoea so show the presence of verocytotoxin is confirmed in the specimen of faeces. The toxin is produced by specific strain of ETEC O157 H7