This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Fecal leucocytes are absent in all the following EXCEPT- 
Select and explain. 
A. Giardiasis, B. Cryptosporidiasis, C. Campylobacter infection, D. Clostridium perfringes infection
C: Campylobacter infection
Answer: C: Campylobacter infection 
Explanation: None