Microbiology In HIV patient with malabsorption, fever, chronic diarrhea, with acid fast positive organism, What is causative agent? A Giardia B Microsporidia C Isospora D E. histolytica 💡 Explanation In HIV patient with malabsorption, fever, chronic diarrhea, with acid fast positive organism, What is causative agent? ✓ Correct Answer: C. Isospora