Parasite
Parasites are living things that use other living things - like your body - for food and a place to live. You can get them from contaminated food or water, a bug bite, or sexual contact. Some parasitic diseases are easily treated and some are not.
Parasites range in size from tiny, one-celled organisms called protozoa to worms that can be seen with the naked eye. Some parasitic diseases occur in the United States. Contaminated water supplies can lead to Giardia infections. Cats can transmit toxoplasmosis, which is dangerous for pregnant women. Others, like malaria, are common in other parts of the world.
If you are traveling, it's important to drink only water you know is safe. Prevention is especially important. There are no vaccines for parasitic diseases. Some medicines are available to treat parasitic infections.
Felter's Materia Medica on Parasite
   The flowering tops and leaves of Artemisia Absinthium, Linné (Nat. Ord. Compositae); Europe, Siberia, Barbary, Newfoundland, and the United... / ...heart. Though less agreeable than santonin, it may also be used for the expulsion of the intestinal parasites-Ascaris vermicularis and Ascaris lumbricoides. The oil may be given in doses of 1 to 5 dro...1
   The seeds of Anamirta panniculata, Colebrooke (Nat. Ord. Menispermaceae.) East India. Common Names: Fishberries, Indian Berries. Synonym: Cocculus... / ...porated.) Action and Therapy.External. A violent, poisonous parasiticide for animal and vegetable parasites, to destroy head lice and the itch mite, and relieve scald head, sycosis barbae, trichophy... / ...to stupefy fish, so as to readily catch them, and it is asserted to be in use among brewers to add bitterness to beer and other malt beverages.1
   Glycerin, Glycerol. A liquid composed most largely of a trihydric alcohol (C3H5(OH)3) obtained by the processes of hydrolysis and distillation of... / ...o the rectum it provokes evacuation, both by its irritating and dehydrating effects. Glycerin kills parasites, both cutaneous and intestinal, and allays itching, probably by its protective, antiseptic... / ...A 5 per cent solution of phenol in glycerin upon cotton may be used for insertion into the aural canal after rupture of the membrana tympani wh1
   The dried bark of the stems and roots of Punica Granatum, Linné (Nat. Ord. Punicaceae). India, southwestern Asia, and the Mediterranean... / ... disturbances. The tannate kills the tapeworm easily, but has far less effect upon other intestinal parasites. The associated alkaloids, sold as pelletierine, constitute an exceedingly active combinat... / ...Epsom salt, fluidextract of jalap, or castor oil may be used as the cathartic. If the tannate is employed it may be administered in capsule.1
