Diseases brought by dirty water

1. Diseases brought by dirty water Causes of disease's By Barbara and chloe

2. Causes of disease's • Over a billion people in the world do not have access to safe water and over two billion lack adequate sanitation. As a result 5000 children die every day. • This page outlines the most prevalent of these diseases. It explains what they are, how they are spread and how they can be prevented. • What causes diseases? • Diseases are caused by micro-organisms called pathogens. These can be divided into the following groups: • Viruses are very small and generally do not survive for long outside the human body. Among other diseases viruses cause infectious hepatitis and polio. • Bacteria need moisture, warmth, food and time to multiply and survive. Diseases they cause include cholera and typhoid. • Protozoa are single celled micro organisms capable of some movement. They cause diseases including dysentery and giardiasis. • Helminths (parasitic worms) are large and do not survive for long outside a person's body. However they lay eggs, some of which are very good at surviving harsh conditions. Worms cause bilharzia, guinea worm and hookworm infections.

3. How we can prevent dirty water and diseases One in eight people in the world do not have access to safe water. Many women and children in rural areas in developing countries spend hours each day walking kilometres to collect water from unprotected sources such as open wells, muddy dugouts or streams. In urban areas they collect it from polluted waterways or pay high prices to buy it from vendors who obtain it from dubious sources. The water is often dirty and unsafe, but they have no alternative. If we listen to what the world needs and give £ 2.00 a month we can save 100 people please .