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Entamoeba histolytica is a pathogenic ameba that causes intestinal and extraintestinal infections. It is well recognized as a cause of amebiasis, a disease that can be diagnosed by fecal examination of cysts and trophozoites. The life cycle of E. histolytica involves ingestion of mature cysts from fecally contaminated food, water, or hands, followed by excystation in the small intestine and trophozoite invasion of the intestinal or extraintestinal mucosa.
Oct 6, 2022 · Entamoeba histolytica is an enteric protozoan parasite that causes amoebic dysentery and liver abscess. It has two-stage life cycle: trophozoite and cyst. Trophozoites invade the intestine and liver, while cysts are passed in feces. Learn more about its transmission, symptoms, diagnosis and treatment.
Life-cycle of Entamoeba histolytica. Entamoeba histolytica is an anaerobic parasitic amoebozoan, part of the genus Entamoeba. Predominantly infecting humans and other primates causing amoebiasis, E. histolytica is estimated to infect about 35-50 million people worldwide.
- E. histolytica
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Apr 17, 2023 · The majority of E. histolytica infections are asymptomatic; however, up to 10% of asymptomatic individuals infected can develop the disease over time. E. histolytica most commonly causes intestinal amoebiasis but can also affect the liver, respiratory tract, heart, and brain.
Nov 12, 2020 · E. histolytica has 2 main stages during its life cycle: the trophozoite and the cyst stage. The infectious agent is the cyst and is transmitted through the oral–fecal route via contaminated food or water. Animal models are not available for this stage interconversion, which is essential for disease propagation and pathogenesis.
Dec 2, 2018 · 1. Introduction. Amoebiasis, or amoebic dysentery, is a term used to describe an infection caused by the protozoan Entamoeba histolytica [ 1 ]. Most infections are asymptomatic, but invasive intestinal disease may occur manifesting with several weeks of cramping, abdominal pain, watery or bloody diarrhea, and weight loss [ 1 ].
