But with revised numbers downsizing the pandemic - along with an admission that AIDS peaked in the late 1990s
- some AIDS experts are now wondering if it might be wise to shift some of the billions of dollars of AIDS money to basic health problems like clean water, family planning or diarrhea.
"If we look at the data objectively, we are spending too much on AIDS," said Dr. Malcolm Potts, an AIDS expert at the University of California, Berkeley, who once worked with prostitutes on the front lines of the epidemic in Ghana.
Problems like malnutrition, pneumonia and malaria kill more children in Africa than AIDS.
"We are programmed to react quickly to small children with AIDS in distress," Potts said. "Unfortunately, we don't have that same reaction when looking at statistics that tell us what we should be spending on."
The world invests about $8 billion to $10 billion in AIDS every year, more than 100 times what it spends on water projects in developing countries. Yet more than 2 billion people do not have access to adequate sanitation, and about 1 billion lack clean water.
In a recent series in the journal Lancet, experts wrote that more than one-third of child deaths and 11 percent of the total disease burden worldwide are due to mothers and children not getting enough to eat
- or not getting enough nutritional food.
"We have a system in public health where the loudest voice gets the most money," said Dr. Richard Horton, editor of Lancet. "AIDS has grossly distorted our limited budget."
But some AIDS experts argue that cutting back on fighting HIV would be dangerous.
"We cannot let the pendulum swing back to a time when we didn't spend a lot on AIDS," said Dr. Kevin De Cock, director of the AIDS department at the World Health Organization. "We now have millions of people on treatment and we can't just stop that."
Still, De Cock once worked on AIDS projects in Kenya, his office just above a large slum.
"It did feel a bit peculiar to be investing so much money into anti-retrovirals while the people there were dealing with huge problems like water and sanitation," De Cock said.
Part of the issue is advocacy, from celebrity ambassadors to red ribbons.