Between-Country Inequalities in the Neglected Tropical Disease Burden in 1990 and 2010, with Projections for 2020

Wilma A Stolk, Margarete C Kulik, Epke A le Rutte, Julie Jacobson, Jan Hendrik Richardus, Sake J de Vlas and Tanja A J Houweling

PLOS Neglected Tropical Diseases, 2016, vol. 10, issue 5, 1-13

Abstract: Background: The World Health Organization (WHO) has set ambitious time-bound targets for the control and elimination of neglected tropical diseases (NTDs). Investing in NTDs is not only seen as good value for money, but is also advocated as a pro-poor policy since it would improve population health in the poorest populations. We studied the extent to which the disease burden from nine NTDs (lymphatic filariasis, onchocerciasis, schistosomiasis, soil-transmitted helminths, trachoma, Chagas disease, human African trypanosomiasis, leprosy, visceral leishmaniasis) was concentrated in the poorest countries in 1990 and 2010, and how this would change by 2020 in case the WHO targets are met. Principal Findings: Our analysis was based on 1990 and 2010 data from the Global Burden of Disease (GBD) 2010 study and on projections of the 2020 burden. Low and lower-middle income countries together accounted for 69% and 81% of the global burden in 1990 and 2010 respectively. Only the soil-transmitted helminths and Chagas disease caused a considerable burden in upper-middle income countries. The global burden from these NTDs declined by 27% between 1990 and 2010, but reduction largely came to the benefit of upper-middle income countries. Achieving the WHO targets would lead to a further 55% reduction in the global burden between 2010 and 2020 in each country income group, and 81% of the global reduction would occur in low and lower-middle income countries. Conclusions: The GBD 2010 data show the burden of the nine selected NTDs in DALYs is strongly concentrated in low and lower-middle income countries, which implies that the beneficial impact of NTD control eventually also largely comes to the benefit of these same countries. While the nine NTDs became increasingly concentrated in developing countries in the 1990–2010 period, this trend would be rectified if the WHO targets were met, supporting the pro-poor designation. Author Summary: The World Health Organization (WHO) has set ambitious time-bound targets for the control and elimination of neglected tropical diseases (NTDs). Investing in NTDs is seen as good value for money and as a pro-poor policy. We analyzed 1990 and 2010 burden estimates from the Global Burden of Disease Study 2010 for nine selected NTDs. These data show that the NTD disease burden is strongly concentrated in low and lower-middle income countries in 1990 and 2010. The global burden from these nine NTDs declined by 27% between 1990 and 2010, but the reduction was only 6% in the low income countries compared to 56% in upper-middle income countries, explaining the trend of increasing concentration of the burden in the poorest countries. This trend would be rectified if the WHO targets were met, supporting the pro-poor designation of public policies against NTDs.

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pntd00:0004560

DOI: 10.1371/journal.pntd.0004560

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