Microbiology General 90939561 Patient presenting with abdominal pain, diarrhea taking clindamycin for 5 days. Treated with metronidazole symptoms subsided. What is the causative agent - A Clostridium difficile B Clostridium perfringens C Clostridium welchi D Clostridium marneffi High-Yield Explanation Ans. is 'a' i.e., Clostridium difficile