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Aug 23, 2023 · Continuing Education Activity. 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.
- Akhlema Haidar, Orlando De Jesus
- 2023/02/12
Clinical Presentation. None of these amebae cause symptomatic disease in humans; colonization is noninvasive. However, the presence of trophozoites or cysts of nonpathogenic amebae in stool indicates that the person from whom the specimen was collected had fecal exposure.
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Aug 11, 2023 · Entamoeba coli infection is caused by the ingestion of cysts of the parasite. The primary sources of contamination include: Contaminated water: Drinking water from contaminated sources, such as lakes, rivers, or improperly treated water supplies, can introduce Entamoeba coli cysts into the body.
Oct 29, 2018 · The protozoan Entamoeba gingivalis resides in the oral cavity and is frequently observed in the periodontal pockets of humans and pets. This species of Entamoeba is closely related to the human pathogen Entamoeba histolytica, the agent of amoebiasis. Although E. gingivalis is highly enriched in people with periodontitis (a disease in which ...
- Mark Bonner, Manuel Fresno, Núria Gironès, Nancy Guillén, Jullien Santi-Rocca
- 10.3389/fcimb.2018.00379
- 2018
- Front Cell Infect Microbiol. 2018; 8: 379.
Key Points. Amebiasis is infection with Entamoeba histolytica. It is acquired by fecal-oral transmission. Infection is commonly asymptomatic, but symptoms ranging from mild diarrhea to severe dysentery may occur. Extraintestinal infections include liver abscesses. Diagnosis is by identifying E. histolytica.
Entamoeba gingivalis normally lives in the gingival pockets near the base of the teeth in the human mouth, and may be coughed up in sputum specimens. As such, it is important to differentiate this species from E. histolytica , which may be found in sputum from pulmonary abscesses.
Aug 23, 2023 · Mature Entamoeba coli Cyst. This trichrome-stained photomicrograph depicts a mature Entamoeba coli cyst containing five clearly visible nuclei and what may have been a sixth nucleus, which was outside the focal plane and, therefore, out of focus. The cyst also contained a visible chromatoid body.
