Microsporidiosis
![Life cycle of the various organisms that cause microsporidiosis.](/Images/godic/202501/27/Microsporidiosis_014555.png")
Microsporidiosis is an opportunistic intestinal infection that causes diarrhea and wasting in immunocompromised individuals (HIV, for example). It results from different species of microsporidia, a group of microbial (unicellular) fungi.
In HIV infected individuals, microsporidiosis generally occurs when CD4+ T cell counts fall below 150.