This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Medicine
[{'content': 'Most com mon cause of diarrhea in AIDS patients- \nSelect and explain. \nA. Salmonella typhimurium, B. Cryptosporidium, C. Candida, D. isophora', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Cryptosporidium o Most common cause of diarrhea in HIV - Cryptosporidium.Diseases of Oropharynx and GI system in H.I.V.o These areOral lesions ; Thrush (oral candidiasis), oral Hairy leukoplakia (caused by EBV), and aphthous ulcer.Esophageal: Esophagitis by CMV, HSV or Candida.Diarrhea : Diarrhea is caused by :-o Bacteria : Salmonella, Shigella, Campylobacter, and mycobacteria avium intracellulare.o Fungal: Histoplasma, Coccidioides, penicillium.o Other : CMV, microsporidia, isospora belli, and Cryptosporidia,AIDS enteropathy (HIVenteropathy)", 'role': 'assistant'}]