Four case studies at different geographic scales demonstrate the devastating effects of the disease. In Africa the situation is catastrophic, in Thailand it is rapidly becoming so. In the US there are over 300,000 people with AIDS and more than one million infected by the HIV. The relationships between poverty, drugs and HIV infection are brought out poignantly in a chapter about the Bronx.

The author argues that a real understanding of AIDS has been hampered by conscious or unconscious beliefs that those affected are, and will continue to be, confined to specific minority groups and to parts of the Third World. He shows that such views have led to fundamental misconceptions about the pattern of the spread of the disease and about those who will be most at risk, now and in the immediate future.