Entamoeba coli, E. hartmanni, E. polecki, Endolimax nana, and Iodamoeba buetschlii are generally considered nonpathogenic and reside in the large intestine of the human host. Both cysts and trophozoites of these species are passed in stool and considered diagnosticThe trophozoites multiply by binary fission and produce cysts, and both stages are passed in the feces. The stool samples of 100 children aged 7 – 9 years (51% female and 49% male) were obtained through consent from September 2005 to January 2006. Out of the 100 stool samples examined, 31 of them (31%) were positive for GIP. Among those infected with GIP (see Table 1), 83.87% of the schoolchildren were infected with Entamoeba histolytica, followed by Giardia lamblia(35.48%), Entamoeba hartmanni(25.81%), Entamoeba coli (22.58), Iodamoeba butschlii (19.35%) and Endolimax nana (6.45%).
The key to diagnosis and treatment of amebiasis is knowledge of the epidemiologic risk factors and clinical manifestations, a rational approach to diagnosis, and an understanding of the sites of action and uses of anti-amebic drugs. This knowledge of treatment provides a context for consideration of intestinal infection with less common protozoan pathogens such as Dientamoeba fragilis and Balantidium coli and 'nonpathogenic' protozoa such as Blastocystis hominis and Entamoeba coli.To help prevent infection:
•Boil water or treat with iodine tablets.
•Avoid eating street foods especially in public places where others are sharing sauces in one container.