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    • Entamoeba histolytica trophozoites observed under the ...
      • Entamoeba histolytica trophozoites observed under the microscope stain with methylene blue (Observe that the cells did not accept the stain since they were still alive at the time the picture was taken) (Photos by Samie A) The life cycle of E. histolytica is simple and consists of an infective cyst stage (10 to 15 μ m in diameter) and a multiplying trophozoite stage (10 to 60 μ m in diameter).
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  2. Entamoeba histolytica . and . Entamoeba dispar. are morphologically identical species. In bright-field microscopy, E. histolytica / E. dispar. cysts are spherical and usually measure 12 to 15 µm (range may be 10 to 20 µm). A mature cyst has 4 nuclei while an immature cyst may contain only 1 to 3 nuclei.

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  3. Entamoeba histolytica is an anaerobic pathogenic protozoan parasite that causes approximately 100,000 global deaths annually due to amoebiasis [1].

  4. Entamoeba histolytica/Entamoeba dispar trophozoites have a single nucleus, which have a centrally placed karyosome and uniformly distributed peripheral chromatin. This typical appearance of the nucleus is not always observed as some trophozoites can have nuclei with an eccentric karyosome and unevenly distributed peripheral chromatin.

  5. Jul 14, 2014 · Entamoeba histolytica, the etiological agent of amebiasis, is a major parasitic cause of morbidity and death, particularly in developing countries. It is estimated that around 50 million symptomatic cases and 100,000 deaths worldwide/year.[1]

    • Subhash Chandra Parija, Jharna Mandal, Dinoop Korol Ponnambath
    • 27
    • 2014
  6. Humans can be hosts to at least six species of Entamoeba however only one species, Entamoeba histolytica is known to cause disease. Infection of this amoeba leads to amoebic dysentery. Entamoeba gingivalis can be found within the spaces between the teeth and is associated with periodontal disease and gingivitis. (This is why you should floss!)

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