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Table 1 Types of diseases

From: One step forward, one step sideways? Expanding research capacity for neglected diseases

Type Definition Example Barriers to therapy in developing countries
Type 1 Diseases that are incident in both developed and developing countries with large numbers of vulnerable populations in both groups of countries Diabetes No market incentive to invest in interventions adapted to the resources and social and economic conditions of developing countries
Type 2 Diseases that are incident in both developed and developing countries but with a substantial proportion of the cases in developing countries HIV Type or strain of disease different in developed and developing countries
Type 3 Diseases that are overwhelmingly or exclusively incident in developing countries Chagas disease No market incentive to invest in research