Intestinal parasites have become a serious public health problem in tropical countries because of the climate and the difficulty of achieving efficient hygiene. The objectives of this journal issue are to increase awareness of the individual and collective repercussions of intestinal parasites, describe the current conditions of contamination and clinical actions for parasites, and foster health education as a means of preventing infestation. The journal issue explains various types of parasites, including their epidemiology, symptoms, and different means of diagnosis. These explanations are organized according to different means of transmission: fecal/oral transmission, food transmission, and transcutaneous transmission. The issue also notes that controlling intestinal parasites can be achieved by the use of active drugs, the main features and indications of which are determined by the different types of worms. The spread and transmission of the disease can be stopped by interrupting completely the epidemiological chain at any one point. The journal issue concludes with the statement that the most important factor in prevention is public health awareness among community leaders and the improvement of health status by means of health education. (AP)