| Water-related diseases cause 80 percent of all the world's sicknesses, in the forms of hepatitis A, malaria, diarrhea, dysentery and schistosomiasis. |
| These can be infected with water-borne parasites such as schistosomiasis, which is responsible for the disease bilharzia. |
| Malnutrition and tropical diseases such as malaria, schistosomiasis, and sleeping sickness are widespread. |
| Other causes of bladder infections include parasites such as schistosomiasis, and fungi such as candida, which causes thrush. |
| Prevalent tropical diseases are malaria, schistosomiasis, and river blindness, especially in the south. |
| Advances in this area, especially against malaria and schistosomiasis, are not yet conclusive, but give cause for more optimism than before. |
