Schistosomiasis is a disease caused by a parasite in the form of flatworm Schistosoma that lives freshwater. Schistosomiasis can occur suddenly (acute) or chronic (chronic). Worms that cause schistosomiasis are often found in tropical and subtropical climates. Some parts of countries in Africa, the Middle East, South America, the Caribbean and Asia, including Indonesia, are classified as areas of schistosomiasis. Spread of Schistosomiasis Schistosomiasis is the third largest parasitic disease in the world, and based on its impact on humans, schistosomiasis is classified as the second tropical disease after malaria. Worms that cause schistosomiasis can swim freely in fresh water such as in ponds, rivers, lakes, ditches and reservoirs. This Schistosoma parasite, can enter the human body through direct contact, although initially it does not cause symptoms. Schistosoma will settle in the skin and mature itself, towards the adult stage. Then it will move towards a number of body par...