Non-pathogenic intestinal protozoa are single-celled parasites commonly found in the intestinal tract but never associated with illness. They are found only in lumen (cavity) of the intestinal tract. A non-probabilistic sample survey for accessibility or convenience was used. The sample consisted of 153 individuals who answered an epidemiological investigation form and underwent parasitological examination of feces by sedimentation technique of Hoffman-Pons-Janer and analysis of waterThe proportion of infested individuals was 16.8% and the statistically significant variables were the municipality of residence (p = 0.048) and hygiene habits of hand washing (p≤0.001).
Symptoms can range from mild diarrhea to severe dysentery with blood and mucus. Most commonly this means the liver, as this is where blood from the intestine reaches first, but they can end up almost anywhere in the body.Infection with single or multiple species of intestinal protozoa is common in humans and can result in either asymptomatic colonization or symptoms of intestinal disease. Entamoeba histolytica serves as a paradigm for invasive colonic protozoal infection. The key to diagnosis and treatment of amebiasis is knowledge of the epidemiologic risk factors and clinical manifestations, a rational approach to diagnosis, and an understanding of the sites of action and uses of anti-amebic drugs