Cryptosporidia are intestinal parasites infecting a variety of animals (e.g. cattle, sheep, rodents, cats and dogs, but also birds, fish and reptiles).
Kriptosporidiji so črevesni zajedavci, ki okužijo številne živali (npr. govedo, ovce, glodalce, mačke in pse, pa tudi ptice, ribe in plazilce).