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A 24-year-old AIDS patient develops chronic abdominal pain, low-grade fever, diarrhea, and malabsorption. Oocysts are demonstrated in the stool. Which of the following organisms is most likely to be the cause of the patient’s diarrhea?

(A) Diphyllobothrium latum

(B) Entamoeba histolytica

(C) Giardia lamblia

(D) Isospora belli

(E) Microsporidia

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3 Answers

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Best answer

Isospora belli.

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C: Gardia
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(D) Isospora beli
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