Summary
A survey was conducted for intestinal parasites of 240 children and adolescents from the city of Nova Olinda do Norte, Amazonas, Brazil. It was found that Ascaris lumbricoides was the most prevalent among the helminths with a percentage of 70,4% and Giardia lambia among the pathogenic protozoa with 28,4%. Problems of control of parasitic disease in this area, due the lack of education and sanitation, are discussed.