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''T. foetus'' mainly causes [[Diarrhoea|diarrhoea]] by colonisation of the large intestine. Recovery is slow but longterm prognosis is good. Reports of resistance and success are available for most anthelmintic and antibiotic therapies.

''T. foetus'' mainly causes [[Diarrhoea|diarrhoea]] by colonisation of the large intestine. Recovery is slow but longterm prognosis is good. Reports of resistance and success are available for most anthelmintic and antibiotic therapies.

==Other ''Tritrichomonas'' spp.==

==Other trichomonad spp.==

Others such as ''Trichomonas suis'' and ''Trichomonas vaginalis'' reside as commensals, usually in the gastrointestinal tract of other species such as pigs and guinea pigs respectively. ''[[Trichomonas gallinae]]'' occurs in birds.

Many other trichomonads reside as commensals in the gastrointestinal tract of other species. Two of the most well studied trichomonads are ''[[Trichomonas gallinae]]'', which occurs in birds, and "[[Trichomonas vaginalis]]", which is a common sexually transmitted infection of humans.