The non-pathogenic protozoa can be divided into two groups: amebae and flagellates. Protozoa are a diverse group of unicellular eukaryotic organisms, many of which are motile. To comprehence the prevalence of parasitic infestation and to examine whether geographical location and age also influence the prevalence of infection, fecal samples from 195 school children of five age groups ranging from 5 to 11 years in two different socio-economic zones (rural and urban) were screened for specific intestinal parasites using standard histological techniques. Percentage incidences of parasitic species found in fecal wet mounts and concentrates in rural children were Entamoeba coli (25.3%), Giardia lamblia (17.9%), Blastocystis hominis (14.7%), Entamoeba histolytica (4.2%), Iodamoeba butschlii (1.1%).
For treatment to be effective against all stages, it may require a combination of medications. Infections without symptoms do not require treament but infected individuals can spread the parasite to others and treatment can be considered. Treatment of other entamoeba infections apart from E. histolytica is not needed.[Infections can sometimes last for years. Good sanitary practice, as well as responsible sewage disposal or treatment, are necessary for the prevention of E.histolytica infection on an endemic level. E.histolytica cysts are usually resistant to chlorination, therefore sedimentation and filtration of water supplies are necessary to reduce the incidence of infection