Editorial

HIV/AIDS has now become part of everyday life in urban settlements in the developing world, and presents the world with one of the most serious and disastrous urban challenges it has ever had to face. Since HIV first emerged in the early 1980s, more than 25 million people (adults and children) have lost their lives to AIDS worldwide. The UNAIDS 2007 figures estimate that 33.2 million people are currently living with the virus. Over 95 percent of these people live in developing countries, with Sub-Saharan Africa - particularly Eastern and Southern Africa - most affected. Slum conditions, in which up to 72% of the urban poor in Sub-Saharan African live, are marked by inadequate housing and settlements, which place their inhabitants in a position of heightened vulnerability to HIV infection.