It is transmitted by ingestion of cysts which are released from the feces of an infected person. The ciliates Ciliates move using numerous tiny hair-like structures that beat a rhythmic fashion. Most ciliates are free-living and do not cause disease. Only one, Balatidium coli is know to cause a human disease. The flagellates Possess flagella.
Flagella are capable of whiplike movements that pull the cell through the medium.
Found in the small intestine of human and other mammals. This organism is spread from one host to another when the organism is excreted as a cyst in the feces of the infected host. The cyst allows the organism to survive in the environment where it may be ingested by a new host. This pathogen does not have a cyst phase and must be directly passed from host to host quickly before desiccation. It is found in the vagina and in the male urinary tract.