A by-the-numbers look at HIV/AIDS treatments, infections, deaths

Twenty-five thousand scientists, policy makers and activists attend the 18th annual AIDS conference in Vienna. The UNAIDS agency says for every two people starting treatment for AIDS, five become infected.

Scientists, policy-makers and activists this week convened in Vienna, at the 18th annual AIDS conference.

UNAIDS stated that in 2008 there were 100,000 fewer AIDS-related deaths than in 2007. But the United Nations agency noted that for every two people starting treatment, a further five become infected with the virus.

The conference, which attracted 25,000 participants, focused this year on human rights.

"It is now absolutely clear that stigma, discrimination and rights violations — whether focused directly on people with HIV or on particular groups, such as women and girls, men who have sex with men, people who use drugs or trade/sell sex or young people — as well as punitive or misguided policies towards key populations most affected by HIV are major obstacles to an effective response to HIV," the conference agenda stated.

Here is a statistical examination of AIDS and HIV around the globe.