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Balantidium coli is a large ciliated protozoan that causes balantidiasis, a parasitic infection of the large intestine and appendix. Cysts are the infectious stage and are transmitted by ingestion of contaminated food or water.
Balantidium coli as seen in a wet mount of a stool specimen. The organism is surrounded by cilia. Balantidium coli has two developmental stages, a trophozoite stage and a cyst stage. In trophozoites, the two nuclei are visible.
- B. coli
- Balantidiidae
Oct 23, 2023 · Learn about the epidemiology, clinical manifestations, diagnosis, and treatment of balantidium coli infection, a parasitic disease caused by a ciliate protozoan. Balantidium coli cysts are the main infective stage and can be transmitted by ingestion of contaminated water or food.
Aug 25, 2023 · Next: Pathophysiology. Balantidiasis (also known as balantidiosis) is defined as large-intestinal infection with Balantidium coli, which is a ciliated protozoan (and the largest protozoan that...
Balantidium cysts are larger (40 to 60 μm) than ameba cysts and are binucleate (macro- and micronuclei), and at times the trophic organism can be seen spinning within the cyst wall due to ciliary activity. The two organisms are found in the trophic state in diarrheic stools.
