Ciliary muscle spasm: Related Topics. These medical condition or symptom topics may be relevant to medical information for Ciliary muscle spasm: 1  Ciliary muscle. 2  Muscle spasm (29 causes). 3  Ciliary. 4  Muscle.
Giardia intestinalis is also a common parasite found in drinking water. Both Cryptosporidium and Giardia intestinalis are found in the fecal matter of an infected person or animal. These parasites can be spread when someone swallows water that has been contaminated with fecal matter from an infected person or animal.oth Cryptosporidium and Giardia intestinalis are found in the fecal matter of an infected person or animal. These parasites can be spread when someone swallows water that has been contaminated with fecal matter from an infected person or animal.
Strongyloides. The threadworm, a genus of small nematode parasites (superfamily Rhabditoidea), commonly found in the small intestine of mammals (particularly ruminants), that are characterized by an unusual life cycle that involves one or several generations of free-living adult worms.trongyloides simiae. see S. fuelleborni (above). Strongyloides stercoralis. a species found in the intestine of humans and other mammals, primarily in the tropics and subtropics, usually causing diarrhea and intestinal ulceration.