In an HIV-infected patient, Isospora belli infection is diferent from Cryptosporidium infection in which of the following ways?
Explanationhe correct answer is: C. Isospora is more likely to infect immunocompetent hosts than Cryptosporidium. Isospora belli infection is more commonly seen in immunocompetent individuals compared to Cryptosporidium infection, which is predominantly associated with immunocompromised individuals, particularly those with HIV/AIDS. Isospora belli infection can cause a self-limited diarrheal illness in immunocompetent hosts. The other options are incorrect: A. Isospora belli infection generally causes a self-limited diarrheal syndrome that can be treated with appropriate rehydration. It does not typically lead to rapid dehydration or death. B. Cryptosporidium infection can involve not only the lumen of the small and large bowel but also the biliary tract. Isospora belli infection does not typically involve the biliary tract. D. Isospora belli infection is generally treated with trimethoprim-sulfamethoxazole and responds well to this treatment. However, both Isospora belli and Cryptosporidium can be challenging to treat in immunocompromised individuals.
