The science of the virus and its effects and the clinical approaches to its treatment and transmission prevention are placed in the context of the history and epidemiology of the HIV-AIDS pandemic. Each organ system of the body is explored as to manifestations of the disease, treatment now and in the future, as well as what the disease has taught us about the immune response. The science of epidemiology, which is so important in allowing for tracking of the disease and potential limitation of transmission, is another aspect of AIDS explored in detail. The pandemic manifests differently in different parts of the world, and the relevance of the volume is enhanced by its international group of contributors. No other text provides the historical and epidemiological context of this disease along with an update of diagnosis and treatment. The underlying science and epidemiology of AIDS are not neglected, so the student or clinician who is treating patients with AIDS can gain a full understanding of HIV/AIDS in individual patients and in their communities.