NCIt definition : A fungal infection caused by Microsporidia. It occurs in immunocompromised patients,
causing diarrhea and wasting.;
Alternative definition : NICHD: An infection that is caused by a group of spore-forming organisms, which have
been re-classified from protozoa to fungi. The infection occurs predominantly in immunocompromised
patients; common sites of infection include the cornea, GI tract, and disseminated
sites.;