Kibera is considered the second largest slum in Africa and covers an area of around 2,5 square kilometers. It is located about 5 km southwest of the city center of Nairobi and is by far not the onliest slum of the capital. Kibera slum consists of several communities connected seamless with one another. Most of the more than 1 Million inhabitants do not have access to basic necessities. Only about 20% of the households have electricity, there is no functioning sewage system and a tremendous lack of latrines. Furthermore, there lives an estimated one fifth of Kenya's 2,2 Million HIV infected people in Kibera. Most severe however is the limited availability of drinking water, which often is highly polluted. In consequence diseases like cholera and typhoid easily spread among the people. Poor nutrition panders such outbreaks.