HIV/AIDS in the World

How many are living with HIV? ... Who's getting access to antiretroviral drugs? ... What countries have the most AIDS deaths? Plus stories of how nations have responded to the AIDS crisis.

HIV in the U.S.

Forty thousand Americans are becoming infected with HIV each year and an estimated 1 million are already living with the disease. A state-by-state breakdown of HIV prevalence.

The Money Trail

External donors -- including the Global Fund to Fight AIDS, Tuberculosis and Malaria, President Bush's Emergency Plan for AIDS Relief, the World Bank, and the Bill & Melinda Gates Foundation -- gave more than $8 billion to fight HIV/AIDS in developing nations in 2005. Here is a breakdown of where the money's going.

HIV-1 Global Distribution

An overview of the reach and genetic diversity of HIV-1's nine major subtypes, known as "clades," and its recombinants.