Firstly, humus is not actually type of soil, but is rather a form of mature compost. It can be made either through a composting process or can be found in nature, such as in the rich topsoil found in some forests.
Waterborne Diseases. Waterborne diseases are caused by drinking contaminated or dirty water. Contaminated water can cause many types of diarrheal diseases, including Cholera, and other serious illnesses such as Guinea worm disease, Typhoid, and Dysentery.Water related diseases cause 3.4 million deaths each year.ontaminated water can cause many types of diarrheal diseases, including Cholera, and other serious illnesses such as Guinea worm disease, Typhoid, and Dysentery.
Nearly 10,000 medical teams are giving out water purification tablets and treating people who have had contact with polluted flood water and so are at risk for getting snail fever, or schistosomiasis. Snail fever, or schistosomiasis, is a parasitic disease of the liver, gastrointestinal tract and bladder. The disease is caused by a specific worm which enters a person's body from infested polluted water. There are three main species of these worms (flukes)-- Schistosoma haematobium, S. japonicum, and S. mansoni -- which cause disease in humans. The larval (young) forms of the parasitic worm live in freshwater snails.