Rich countries study the diseases that afflict their citizens and ignore the major killer diseases of the developing world when it comes to medical research expenditure.
A 1998 report in Science magazine, proposed a consortium approach for malaria research involving private firms, medical foundations, government and international health agencies in a 7 year build up to an annual expenditure of US $ 30 million, with private firms providing 70% of the total research budget. The companies declined to be involved for a variety of commercial, legalistic and scientific reasons, with some of them explaining that they were already doing some work on drugs and vaccines.