Entamoeba is a genus of Amoebozoa found as internal parasites or commensals of animals. In 1875, Fedor Lösch described the first proven case of amoebic dysentery in St. Petersburg, Russia. He referred to the amoeba he observed microscopically as Amoeba coli; however, it is not clear whether he was using this as a descriptive term or intended it as a formal taxonomic name. 
Amebiasis is a disease caused by the parasite Entamoeba histolytica. It can affect anyone, although it is more common in people who live in tropical areas with poor sanitary conditions. Diagnosis can be difficult because other parasites can look very similar to E. histolytica when seen under a microscope. Infected people do not always become sick. If your doctor determines that you are infected and need treatment, medication is available.
Entamoeba histolytica is found worldwide and remains an important health problem in developing countries in which sanitation, infrastructure, and health education are not adequate. However, E. histolytica is also seen in developed countries, predominantly due to immigration and increases in international travel.
Entamoeba, protozoan genus of the rhizopodian order Amoebida. Most species are parasitic in the intestines of many vertebrates, including humans; E. histolytica is the cause of human amebic dysentery.
Entamoeba histolytica is well recognized as a pathogenic ameba, associated with intestinal and extraintestinal infections. Other morphologically-identical Entamoeba spp., including E. dispar, E. moshkovskii, and E. bangladeshi, are generally not associated with disease although investigations into pathogenic potential are ongoing.
Amebiasis is a disease caused by a one-celled parasite called Entamoeba histolytica. Who is at risk for amebiasis? Although anyone can have this disease, it is more common in people who live in tropical areas with poor sanitary conditions. In the United States, amebiasis is most common in:
Nov 7, 2022 · Entamoeba coli is a common protozoan found in stool worldwide. It is essential to identify and differentiate this non-pathologic protozoan from those causing significant disease. Infection with Entamoeba coli is a sign of fecal-oral contamination. Prevention through proper hand hygiene and avoidance of contaminated food and water.