This cross sectional study was done in aswan Governorate to determine the prevalence of intestinal
parasites and to identify the risk factors for infection in primary school children in this geographical
area. The results will facilitate evaluation of the endemic level of different intestinal parasites and the
determination of whether widespread or focal measures of parasite control are required. After obtaining
official permission from the school administration, information and consent forms were prepared and
given to the parents of all the study participants. three-hundreds children aged between 6-12 year were
enrolled; a detailed questionnaire, complete clinical assessment complete as well as stool
analysis was done The study revealed that Prevalence of parasitic infection was 31%. Single parasitic
infection in 26% and mixed infection in 5%.The commonest helminthic infection was. E vermicularis
6.6% followed by H.nana 3% Ascaris 1%. The commonest protozol infection was E.histolytica 8.3%
followed by Giardia 3.7% and Cryptosporidium 1.7% Mixed infection was in form of E vermicularis plus
E.histolytica in 23.4%, E vermicularis plus Giardia in 17.6%, E vermicularis plus Cryptospordium in
11.8%, E.histolytica plus H nana in 11.85%, Ascaris plus E. histolytica in 17.6%%, Giardia plus E.
histolytica in 11.8%. Parasitic infestation was more prevalent in boys 53.8% than girls 46.2%. Parasitic
infestation was more prevalent in rural children 39.73% than urban children 20.13%. Age ranged from 6
to 12 years with a mean of 8.97±1.72 years.