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[[Image:Balantidium pig.jpg|thumb|right|150px|''Balantidium'' from a pig - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]]
[[Image:Balantidium pig trophozoite.jpg|thumb|right|150px|''Balantidium'' trophozoite from a pig - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]]

*Ciliate protozoan found as a commensal in the lumen of the [[Large Intestine - Anatomy & Physiology|large intestine]]

*Infects pigs and other animals
**Including humans

'''Recognition'''
*Ciliate

*80μm long

*Funnel-shaped depressions leading to the cytostome (mouth)

*Kidney shaped macronucleus

*Small micronucleus

*Contractile and food vacuoles

'''Life Cycle'''
*Reproduce by binary fission

*Thick-walled cysts pass out with faeces
**Ensure infection of a new host

'''Pathogenesis'''
*Pigs
**Usually commensal
**May cause ulceration and dysentery if the intestinal mucosa is damaged already as parasite will become invasive

*Man
**Causes ulceration and dysentery
**Infection via consuming contaminated foodstuffs and contact with infected pig faeces[[Category:Protozoa]]
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