All are true about Balantidium coli except:
It is a protozoa
Cyst is the infective stage
Usually invades liver
It is the largest protozoan parasite inhabiting large intestine in man
Balantidium coli Only ciliate protozoa and the largest causing human disease (ciliate dysentery). Infective stage: binucleate cyst; spherical, ellipsoid, 50-75mm, double layered cyst wall. The invasive form is the trophozoite - 80-120mm; two nuclei (macronucleus, micronucleus), peristome, cytostome, cytopharynx, cytopyge.
Parasitology Pa 1 (Protozoology)