| How can we expect a man or a woman to do a full day's work if he or she is riddled with malaria, bilharzia or hookworm? |
| Some of the most common diseases are malaria, bilharzia, sexually transmitted diseases, tetanus, cholera, polio, and typhoid. |
| Malnutrition is common, making it possible for tropical diseases such as malaria and bilharzia to spread. |
| These can be infected with water-borne parasites such as schistosomiasis, which is responsible for the disease bilharzia. |
| Bilharzia is transmitted by bathing in water infected with bilharzia larvae. |
| They also provide breeding grounds for the carriers of diseases such as malaria and bilharzia. |
