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
Persistent diarrhoea is due to: 
Select and explain. 
A. EAEC, B. EPEC, C. EIEC, D. ETEC
A: EAEC
Answer: A: EAEC 
Explanation: Persistent diarrhoea is due to EAEC (Enteroaggregative Escherichia coli). option 1 EAEC: Persistent diarrhea in developing countries. option 2 EPEC- Infantile diarrhea. Option 3 EIEC- ulceration of bowel, dysentery (resembling shigellosis). option 4 ETEC- most common cause of traveler's diarrhea.