Distribution of Protozoan parasites in Drinking Water in Some Regions of Basra Province

The aims of this study to identified and evaluate the prevalence of drinking water contamination with pathogenic protozoan parasites. A total of102 water samples were collect from three different sources of drinking water(34 plastic bottled , 32 samples house tank and 36 samples tap water , were collected from the house distributed by two regions, Al-Shamshomia and Al-Zubir ) in Basrah province, during the period of July to November 2018. Water samples were examined by direct method and by sedimentation and floatation methods. From 102 water samples45%in which Entamoeba histolytica is the most common parasites that were detected in39% water samples followed by Cryptosporidium sp.18% and then other types of algae and parasites but in lower rates.