الخلاصة

A total of 450 water samples collected from three different sources (tank water, rivers and wells water) in three districts (Abi-Gharaq, Al-Kefel and Al-Neil) in suburban of Babylon province during the period from January 2011 till july 2011. All of the three drinking water sources was contaminated with cysts, oocysts and eggs of the parasites. The results indicates overall percentage incidence of infection with these parasites of ( 65.5% ) including protozoans ( Giardia lamblia 13.54% , Cryptosporidium sp. 2.87% , Entamoeba coli 19.5% , Balantidium coli 5.78% and Entamoeba histolytica 18.9%) and one helminth Hymenolips nana (4.8%) . The result of the study presents a need of an appropriate source of drinking water to identify the threshold of water sources contamination that requires treatment. Preventing waterborne disease and the health effects of water contamination is vital to public health .