بررسي فراواني آلودگي هاي انگلي روده اي در بين دانش آموزان مدارس ابتدايي منطقه نازلوي شهرستان اروميه در سال 1383

THE PREVALENCE OF INTESTINAL PARASITIC INFECTION IN THE STUDENTS OF PRIMARY SCHOOLS IN NAZLOO REGION IN URMIA DURING 2004-2005

Background & Aims: Intestinal parasitic infections are of the most important hygienic and economical problems of millions of people in all over the world, mostly from developing countries. Understanding their epidemiological situation and relation to environmental and social factors is necessary for struggling with them in every society. This investigation was designed to study the prevalence of parasitic intestinal infections among primary schools attending students in Nazloo region of Urmia district in 2004. Materials & Methods: 271 students were chosen randomly from 7 schools upon their population. Having their questionnaires filled, two fecal samples were taken from each student and examined with direct wet mount and formalin-ether sedimentation technique. Scotch tape was also applied in order to detect the enterobiasis and taeniasis. 271 students completed the test. Results: Overall prevalence of parasitic protozoan infections was 29.5%. Giardia Lamblia was found in 28 cases (10.3%), Entamoeba Coli in 27 cases (10%) and Blastocystis Hominis in 2 cases (0.7%). 28.4% of students had Enterobius Vermicularis and just one case(0.4%) showed Hymenolepis Nana infection. Concomitant infections were found in 17 cases (6.3%) for Giardia and E. Coll, 2 cases (0.7%) for Giardia and B. Hominis, one case (0.4%) for E. Coli and B. Hominis, one case (0.4%) for Giardia and E. Vermicularis and one case (0.4%) for E. Coll and E. Vermicularis. Discussion: With regard to high prevalence of giardiasis and enterobiasis, they increase the prevalence of intestinal parasitic infections. It is suggested to decrease the rate of these parasitic infections in the region by strict prograrnes that help to increase the knowledge of students, their parents and teachers about hygiene.