Microsporidia are intracellular-living spore-forming protozoa, classified into more than 50 genera and over 600 species. They infect various animals and nonvertebrates. Some nonvertebrate hosts are mosquitos, honey bees, fish, and grasshoppers. In humans, clinical disease has only recently been noticed, and only in persons with AIDS. Here, the predominant species is Enterocytozoon bieneusi, which primarily […]