This study reviews the highly diverse regional and country patterns of HIV epidemics and discusses possible causes of the geographic variation in epidemic sizes. Past trends and projections of the epidemics are presented and the peak years of epidemics are estimated. The potential future impact...

This paper reviews the evolution of the HIV/AIDS epidemic and provides estimates of past trends and future projections of AIDS mortality indicators, including numbers of AIDS deaths, the proportion of all deaths that are due to AIDS, and life expectancy. In 2007, a total of 2.0 million men,...