An increased awareness of the need to fight HIV/AIDS, has encouraged rich countries to increase their funding for health programs in developing nations more than fourfold between 1990 and 2010.
Research by the University of Washingtons Institute for Health Metrics and Evaluation (IHME) found that development assistance for health programs jumped from 5.66 billion dollars in 1990 to a projected 26.87 billion dollars this year.
Spending on HIV/AIDS programs was 6.16 billion dollars, or nearly a quarter of the total funding, said the report released on the eve of World AIDS Day.
The AIDS pandemic, which has claimed some 25 million lives since the immune deficiency disease was first reported in 1981, is one of the reasons that funding from wealthy nations for global health programs has gone up sharply, Chris Murray, the lead author of the report, told AFP.
"Until the HIV epidemic came along, we didnt have this sudden explosion of funding for global health," Murray said.
The surge in funding for health in developing countries was fueled in part by a sense of "moral outrage felt by many people in the West at the fact that if you had money, you could get this miraculous triple-drug treatment for HIV," but the same treatment was not available in poor countries.
"That and the presence of highly effective AIDS activism and advocacy groups has been a big driver in the expansion of global health funding in high-income countries," he said.