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      • Cysts and trophozoites are passed in feces . Cysts are typically found in formed stool, whereas trophozoites are typically found in diarrheal stool. Infection by Entamoeba histolytica occurs by ingestion of mature cysts in fecally contaminated food, water, or hands.
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  2. Nov 14, 2021 · Entamoeba coli, similar to other Entamoebaspecifies, has three distinct morphological forms: trophozoite, pre-cystic stage, and cystic stage.[2] The trophozoite form, which measures 20 to 25 μm, is minimally mobile.[23] The core of the trophozoite is slightly oval in shape with a nucleus surrounded by a thick membrane.

  3. Nov 14, 2021 · Entamoeba coli is one of many non-pathogenic protozoa found in humans. It is transmitted through fecal-oral contact, and the mature cyst can be found in contaminated water. Typically, these protozoa inhabit the large intestinal tract and can be identified in diagnostic stool specimens.

  4. Trophozoites of E. coli measure 15–50 μm and have a single nucleus with irregular peripheral chromatin and a usually eccentric karyosome. The cytoplasm is often described as “dirty” and may contain vacuoles and ingested food particles, including bacteria, yeast, and even other intestinal protozoa. Cysts are 10–35 μm in diameter.

  5. Current U.S. treatment guidelines recommend as first line treatment either iodoquinol 650 mg PO three times a day for 20 days in adults and 30-40 mg/kg/d PO in three divided doses for 20 days in children OR paromomycin 25-35 mg/kg/d PO in three divided doses for 7 days in both children and adults. Amoebic liver abscess

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