TABLE 3.

Pathogenic and Non-Pathogenic Intestinal Parasites

Parasite Type	Pathogens	Non-Pathogens
Protozoa	Entamoeba histolytica	Endolimax nana
	Giardia lamblia	Entamoeba coli
	Dientamoeba fragilis	Entamoeba gingivalis
	Balantidium coli	Entamoeba hartmanni
	Blastocystis hominis	Entamoeba polecki
	Isospora belli	Iodamoeba butschlii
	Cryptosporidium parvum	Chilomastix mesnili
	Cyclospora cayentensis	Enteromonas hominis
	Microsporidia species	Retortamonas intestinalis
		Trichomonas hominis
		Trichomonas tenax
Helminthes	Ascaris lumbricoides (common roundworm)
Nematodes (roundworms)	Trichuria trichuris (whipworm)
	Strongyloides stercoralis (threadworm)
	Enterobius vermicularis (pinworm)
	Necator americanus(hookworm)
	Ancylostoma duodenale (hookworm)
Cestodes (tapeworms)	Hymenolepsis species
	Taenia saginata (beef tapeworm)
	Taenia solium (pork tapeworm)