AIDS patients usually suffer from opportunistic infections with non-specific symptoms, especially low-grade fever and weight loss. These opportunistic infections including infections with Mycobacterium avium-intracellulare and cytomegalovirus. Cytomegalovirus can cause inflammation of the colon (colitis) as described above, and disturbances in retinal inflammation (cytomegalovirus retinitis), which can cause blindness. Infections caused by the fungus Penicillium marneffei, or called Penisiliosis, opportunistic infections now are the third most common (after tuberculosis and cryptococcosis) in HIV positive people in endemic areas of Southeast Asia.
