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  1. Balantidium coli has two developmental stages, a trophozoite stage and a cyst stage. In trophozoites, the two nuclei are visible. In trophozoites, the two nuclei are visible. The macronucleus is long and sausage-shaped, and the spherical micronucleus is nested next to it, often hidden by the macronucleus.

  2. When traveling to endemic tropical countries, Balantidium coli infection can be prevented by following good hygiene practices. Wash all fruits and vegetables with clean water when preparing or eating them, even if they have a removable skin. Images: Left: Balantidium coli cyst. Right: B. coli trophozoite in a wet mount of feces. (Credit: DPDx)

  3. Balantidium coli is passed intermittently and once outside the colon is rapidly destroyed. Thus stool specimens should be collected repeatedly, and immediately examined or preserved to enhance detection of the parasite; concentration via sedimentation or flotation can increase the probability of recovery.

  4. The organism listed below which has both trophozoite and cyst stage: (a) D fragilis (b) T hominis (c) T vaginalis (d) Chilomastix mesnili D A trophozoite with RBCs in the cytoplasm is: (a) Entamoeba histolytica (b) Iodamoeba butschlii (c) Entamoeba coli (d) Endolimax nana

  5. A cyst that possesses a single nucleus and a large glycogen vacuole that stains deeply with iodine belong to ... Nucleus in the trophozoite of Balantidium coli is the ...

  6. en.wikipedia.org › wiki › ProtozoaProtozoa - Wikipedia

    Balantidium coli: parasitic ciliate: 50–100 Paramecium caudatum: free-living ciliate: ... The conversion of a trophozoite to cyst form is known as encystation ...

  7. Paniker's Textbook of Medical Parasitology, 7th Edition (2013) [PDF]

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