Question

E. coli that form the normal flora of human intestine causes

• A. Urinary tract infection in infants only
• B. Diarrhoea only in adults
• C. Meningitis
• D. None of the above

Answer 1

The correct option is D None of the above

Escherichia coli (E. coli) bacteria normally live in the intestines of people and animals. Most E. coli are harmless and actually are an important part of a healthy human intestinal tract. However, some E. coli are pathogenic, meaning they can cause illness, either diarrhoea or illness outside of the intestinal tract. The types of E. coli that can cause diarrhea can be transmitted through contaminated water or food, or through contact with animals or persons.