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What is Major signs included by WHO for AIDS diagnosis - and explain in detail?
The initial evaluation of a patient with HIV infection and diarrhea should include a set of stool examinations, including culture, examination for ova and parasites, and examination for Clostridium difficile toxin.In patients for whom this diagnostic evaluation is nonrevealing, a presumptive diagnosis of HIV enteropathy can be made if the diarrhea has persisted for >1 month. (Harrison's Principles of internal medicine, 20th edition, page 1511 )