This report presents (1) information on the incidence, causes, development, transmission, control and prevention of parasitic infections and (2) a report of how Hawaiian Follow Through Students infected by parasites were identified and provided with treatment. The students were enrolled in kindgergarten through third grade classes at three elementary schools. Three of the 27 children screened had parasitic intestinal diseases. Two additional cases may have escaped detection. Also included in this report are descriptions of the procedures developed for contacting parents, teachers and children, collecting stool specimens, and providing follow-up services. It is noted that children with infections may show signs of poor motor coordination, restlessness, inability to sit still and inability to focus on school work. Parasitic intestinal infections can affect how children learn and perform in school. A teacher's health observation form, a chart summarizing the data of the study and a stool specimen collection memo to parents are appended. (Author/RH)