ABSTRACT
Entamoeba histolytica is a pseudopod-forming non-flagellate protozoan parasite. Based on isoenzyme analysis, typing by monoclonal antibodies to surface antigens and restriction length polymorphism, E. histolytica has been reclassified into two species which are morphologically identical: E. histolytica, an invasive disease-causing organism and E. dispar, a non-invasive parasite.
