Entamoeba Histolytica - Wikipedia, the Free Encyclopedia • Ten Things You May Not Know About Wikipedia • 23,333 Have Donated
Entamoeba histolytica - Wikipedia, the free encyclopedia • Ten things you may not know about Wikipedia • 23,333 have donated. You can help Wikipedia change the world! » Donate now! "So that others may enjoy the gift of knowledge" — Anon. [Hide this message] Entamoeba histolytica From Wikipedia, the free encyclopedia Jump to: navigation, search Entamoeba histolytica Entamoeba histolytica cyst Scientific classification Domain: Eukaryota Phylum: Amoebozoa Class: Archamoebae Genus: Entamoeba Species: E. histolytica For the infection and disease caused by this parasite, refer to Amoebiasis. Entamoeba histolytica is an anaerobic parasitic protozoan, part of the genus Entamoeba. It infects predominantly humans and other primates. It is estimated that about 50 million people are infected with the parasite worldwide. Diverse mammals such as dogs and cats can become infected but are not http://en.wikipedia.org/wiki/Entamoeba_histolytica (1 of 5)13/11/2550 13:08:05 Entamoeba histolytica - Wikipedia, the free encyclopedia thought to contribute significantly to transmission. The active (trophozoite) stage exists only in the host and in fresh loose feces; cysts survive outside the host in water, soils and on foods, especially under moist conditions on the latter. When cysts are swallowed they cause infections by excysting (releasing the trophozoite stage) in the digestive tract. E. histolytica, as its name suggests (histo–lytic = tissue destroying), causes disease; infection can lead to amoebic dysentery or amoebic liver abscess. Symptoms can include fulminating dysentery, diarrhea, weight loss, fatigue, abdominal pain, and amebomas. The amoeba can actually 'bore' into the intestinal wall, causing lesions and intestinal symptoms, and it may reach the blood stream. From there, it can reach different vital organs of the human body, usually the liver, but sometimes the lungs, brain, spleen, etc.
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