Balantidium coli cyst

Balantidium coli cyst

(A) B. coli cyst in a wet mount, unstained.
(B) B. coli cyst (arrowhead) and trophozoite (arrow) in the same field, from a primate fecal sample.

Reproduced from: Balantidiasis. Centers for Disease Control and Prevention. Available at: https://www.cdc.gov/dpdx/balantidiasis/index.html (Accessed on July 6, 2021).

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