A year ago, a group of missionaries met a young farmer and patient whom they named “Robert”. He had suffered from the disease for almost a year, ever since he and his fellow farmers were infected. According to his account, they all worked in a particular rice field in Palo, Leyte, which already had a high number of infected residents. Unfortunately, his colleagues died from the disease. Similarly, in Basa, Trento and Agusan del Sur in Mindanao, 70 percent of residents were infected with the disease. Kara David's award-winning Filipino documentary "Alaga" brought to the public's awareness the large number of people who contracted the disease and used Basa as the basis for the report. In the said video, David saw how it was possible that most of the residents suffered from a similar illness. She met a certain family, Bandera, all of whose members, except the infant, are hosts of parasites. One of his daughters died in 2007 from the same illness. Malou, the mother, said they were infected through contact with the water around them. The river that surrounds the place serves as a source of drinking water, a place where they wash clothes and a playground for their children. According to data collected by the city health office from specimens of snails that lived in the waters of Basa, the place where they play, wash and