December 30, 2019   |   by admin

Balantidium coli is a cosmopolitan parasitic-opportunistic pathogen that can be Balantidium has a simple life cycle, as follows: dormant cyst to trophozoite and. Balantidium coli life cycle. Infection occurs when a host ingests a cyst, which usually happens during the consumption of contaminated. Download/Embed scientific diagram | Life cycle of Balantidium coli. from publication: 4. Parasitic Protozoa | Keywords:Protozoa and Parasites | ResearchGate.

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They have a tough multilayered shell which protects them against stomach acid of the host, when ingested. Tetracycline is not recommended for pregnant women or children under 8 years old.

They live and feed in the lumen but sometimes penetrate the mucosa.

Balantidium Coli

Following ingestion, excystation occurs in the small intestin. Balantidium coli has two developmental stages, a trophozoite stage and a cyst stage. This Balantidimu was problematic due to non-greyscale color table.

Trophozoites undergo encystation to produce infective cysts. But in some cases the patient might have diarrheaweight loss and dysentery. The motile trophozoite then resides in the lumen of the large intestine, feeding on intestinal bacterial flora and intestinal nutrients.

Life Cycle of Balantidium coli

Trophozoites have both a micronucleus and a macronucleus, which both are normally visible. Balantidium coli is a parasitic species of ciliate alveolates that causes the disease balantidiasis. People who raise pigs have bigger risk of getting infected with balantidiasis.


Dermatobia hominis – Human Botfly. If the drug is not available, then iodoquinol and metronidazole can be used. Their surface is covered with cilia and are able to move around.

Retrieved from ” https: Some return to the lumen and disintegrate. Balantidium coli The Disease: Excystation produces a trophozoite from the cyst stage.

March 17, Page last updated: In trophozoites, the two nuclei are visible. See Morphology and Transmission for further descriptions of the stages. Balantidium infection in immunocompetent individuals is not unheard of, but it rarely causes serious disease of the gastrointestinal tract. Dinokaryota With a theca: The cysts are formed either in the large intestine or outside of the body.

Balantidium coli has 2 developmental stages: The macronucleus is bigger and sausage-shaped whereas the micronucleus is less notable. Excystation in large intestine.

Balantidium Coli

Ascaris Lumbricoides – Giant Roundworm. Most infections occur in developing countries where feces are more likely to get in contact with food and drinking water. Public domain Public domain false false. Diagnosis can be made by finding trophozoites from a stool or tissue sample collected during endoscopy.


Cysts are smaller than trophozoites and are round and have a tough, heavy cyst wall made of one or two layers.

File:Balantidium LifeCycle.png

The trophozoites reside in the lumen of the large intestine of humans and animals, where they replicate by binary fission, during which conjugation may occur. Schistosoma – Blood Flukes. It balangidium through two development phases; a cyst and a trophozoite.

The trophozoites reside in the lumen of the large intestine of humans and animals, where they replicate by binary fission, during which conjugation may occur.

Some trophozoites invade the wall of the colon and multiply.

The host most often acquires the cyst through ingestion of contaminated food or water. Sarcoptes Scabiei – Scabies. Some people are weakened by other diseases and thus the cysts are not killed. This image is a work of the Centers for Disease Control and Preventionpart of the United States Department of Health and Human Servicestaken or made lfie part of an employee’s official duties.