The flow of the ectoplasm and endoplasm allows for motility. This parasite contains a nucleus and food vacuoles. The minuta form is the stage in between the cyst and trophozoite stage.
Microscopic investigation of stool samples is used to detect cysts and trophozoites.
- Cysts and tophozoites are passed in feces of humans
- Infection generally occurs by formed cysts which are ingested through food, water, or hands
- Excystation (exit from cyst stage) occurs in small intestine
- Trophozoites are released and migrate to large intestine
- Trophozoites multiply by binary fission. Cysts are produced.
- Primarily human hosts (no intermediates)
- People are more at risk in areas which have poor sanitation since this parasite is transmitted via faecal-oral route
- Is also common in men who have sex with men
- Can often be carried with no symptoms, making spread easy
- Antibiotics can be used to treat this parasitic infection
Entamoeba histolytica is distributed worldwide. The majority of infections occur in developing countries due to poor sanitation.