Epidemiologists are thinking about trying to stop the spread of HIV with more HIV, but a strain engineered to be harmless to humans.

Instead of helping Africans combat the spread of AIDS, the Catholic Church keeps pouring gasoline on the fire.

Despite decades of experiments and mountains of evidence, there are still activists who refuse to believe HIV causes AIDS. And they have blood on their hands.

A pair of studies shows that not only does abstinence not work, it makes things a lot worse.

AIDS is a terrible disease afflicting tens of millions of people. So why are some experts upset that fighting its spread is getting so much attention and funding?

Evolution in action: an obscure mutation may render some humans immune to AIDS.