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  1. Entamoeba coli is a non-pathogenic species of Entamoeba that frequently exists as a commensal parasite in the human gastrointestinal tract. E. coli (not to be confused with the bacterium Escherichia coli) is important in medicine because it can be confused during microscopic examination of stained stool specimens with the pathogenic Entamoeba histolytica.

  2. Entamoeba coli . E. coli cysts in concentrated wet mounts. Cysts of Entamoeba coli are usually spherical but may be elongated and measure 10–35 µm. Mature cysts typically have 8 nuclei but may have as many as 16 or more. Entamoeba coli is the only Entamoeba species found in humans that has more than four nuclei in the cyst stage. The nuclei ...

  3. May 03, 2022 · Entamoeba histolytica is a protozoan that causes intestinal amebiasis as well as extraintestinal manifestations. Although 90 percent of E. histolytica infections are asymptomatic, nearly 50 million people become symptomatic, with about 100,000 deaths yearly.[1] Amebic infections are more prevalent in countries with lower socioeconomic conditions.[2]

  4. en.wikipedia.org › wiki › AmoebiasisAmoebiasis - Wikipedia

    E. histolytica cysts have a maximum of four nuclei, while the commensal Entamoeba coli cyst has up to 8 nuclei. Additionally, in E. histolytica, the endosome is centrally located in the nucleus, while it is usually off-center in Entamoeba coli. Finally, chromatoidal bodies in E. histolytica cysts are rounded, while they are jagged in Entamoeba ...

  5. E. histolytica exists in two forms, the hardy cyst (infective form) characterized by four nuclei, and the trophozoite (responsible for invasive disease), which has a single nucleus and survives poorly outside the human body.E. histolytica infection is acquired by ingestion of cysts in contaminated water or food or by fecal-oral contact ...

  6. Pathogenic Entamoeba species must be differentiated from other intestinal protozoa such as the nonpathogenic amebae (Entamoeba coli, E. hartmanni, E. gingivalis, Endolimax nana, Iodamoeba buetschlii) and the flagellate Dientamoeba fragilis. Morphologic differentiation among these is possible, but potentially complicated, based on morphologic ...

  7. Entamoeba histolytica was first of all reported by a Russian Zoologist, Losch (1875), as Amoeba coli from the faeces of a patient suffering from dysentery. The genus Entamoeba was established by Cosagrandi and Barbagallo (1895); it should not, be confused with the genus Endamoeba which was established by Leidy (1879).

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